"Dai Akaishi,Keisuke Sekine,Shigekazu Ito","Experimental and Theoretical Studies on Stereomutation Through gem-Difluorocyclopropanylide Intermediates",,"Asian Journal of Organic Chemistry",,,,,2024,Jan. "Kohei Yasuda,Shigekazu Ito","A π-Extension Process from 9-Phosphaanthracene Leading to Phosphatetraphenes and Phosphatetracenes",,"ChemPlusChem",,"Vol. 88",,,2023,June "Kakeru Konagaya,Yuen Huang,Kazuki Iwami,Tetsuya Fujino,Rikutaro Abe,Reuben Parchment-Morrison,K.M. Kojima,Iain McKenzie,Shigekazu Ito","Difluoromethylborates and Muonium for Study of Isonitrile Insertion Affording Phenanthridines via Imidoyl Radicals",,"The Journal of Organic Chemistry",,"Vol. 88","No. 13","pp. 8042-8054",2023,June "Shigekazu Ito,Hikaru Akama,K.M. Kojima,Iain McKenzie,Kazuaki Kuwahata,Masanori TACHIKAWA","Muon Spin Rotation (?SR) for Characterizing Radical Addition to C=S in the Xanthene-9-thione and Thioxanthene-9-thione",,"Bulletin of the Chemical Society of Japan",,"Vol. 96","No. 5","pp. 461-464",2023,May "伊藤繁和","リン複素環分子の素粒子ラジカル反応,",,"月刊「細胞」",,"Vol. 54",,"pp. 518-522",2022,July "Shigekazu Ito","Muon Spin Rotation/Resonance (?SR) for Studying Radical Reactivity of Unsaturated Organophosphorus Compounds",,"Chemistry A Europian Journal","Wiley-VCH","vol. 28",," e202200843",2022,June "Keisuke Sekine,Dai Akaishi,Kakeru Konagaya,Shigekazu Ito","Copper-Catalyzed Enantioselective Hydrosilylation of gem-Difluorocyclopropenes Leading to a Stereochemical Study of the Silylated gem-Difluorocyclopropanes",,"Chemistry A European Journal",,"Vol. 28","No. 32",,2022,Apr. "Kota Koshino,K.M. Kojima,Iain McKenzie,Shigekazu Ito","Muonium Addition to a peri-Trifluoromethylated 9-Phosphaanthracene Producing a High-Energy Paramagnetic π-Conjugated Fused Heterocycle",,"Angewandte Chemie International Edition",,"Vol. 60","No. 45","pp. 24034-24038",2021,Nov. "Shigekazu Ito,Hikaru Akama,Yasuhiro Ueta,Iain McKenzie,K.M. Kojima","Muonium Addition to the Radicalic Carbon in 1,3-Diphosphacyclobutane-2,4-diyl",,"Bulletin of the Chemical Society of Japan","The Chemical Society of Japan","Vol. 94","No. 12","pp. 2970-2972",2021,Nov. "Shunya Hara,Shigekazu Ito","TiCl4-Mediated [2+2] Cycloaddition for Synthesis of Isolable CF3-Substituted 2-Azetines",,"Asian J. Org. Chem.","Wiley","Vol. 10",,"pp. 788-792",2021,Mar. "Miki Kato,Yasuhiro Ueta,Shigekazu Ito","Gold(I) Complexation of the Phosphanoxy-Substituted Phosphaalkenes for the Activation-free LAuCl Catalysis",,"Chem Eur J","Wiley","Vol. 27",,"pp. 2469-2475",2020,Oct. "Akitaka Yokawa,Shigekazu Ito","Convenient Preparation and Structure Determination of Air- and Moisture-Tolerant Difluoromethylborates",,"Chem. Asian J.",,"Vol. 15",,,2020,Aug. "Yasuhiro Ueta,Shigekazu Ito","Scalable Orbital Tuning of the 1,3-Diphosphacyclobutane-2,4-diyl Unit of Singlet Biradicaloid",,"J ORG CHEM",,"Vol. 85",,,2020,June "Kazuaki Ohtsuki,Henry T. G. Walsgrove,Yoshihiro Hayashi,Susumu Kawauchi,Brian O. Patrick,Derek P. Gates,Shigekazu Ito","Diels?Alder reactions of 1-phosphabutadienes: a highly selective route to P=C-substituted phosphacyclohexenes",,"Chemical Communications",,"Vol. 56","No. 5","pp. 774-777",2020,Jan. "Tomokazu Shinozaki,Alfredo Rosas-S?nchez,Daisuke Hashizume,Shigekazu Ito","Incomplete Electrocyclization of a Sterically Hindered 1,4-Diphosphabutadiene",,"ChemPlusChem",,"Vol. 84","No. 11","pp. 1761?1766",2019,Oct. "Kohei Fujii,Shigekazu Ito,KOICHI MIKAMI","Synthetic Methodologies for Perfluoroaryl Substituted (Diaryl)methylphosphonates, -phosphinates via SNAr reaction",,"J. ORG. CHEM.","ACS","Vol. 84",,,2019,Sept. "伊藤繁和","素粒子を用いる有機分子の反応解析:開殻一重項複素環化合物のミュオンスピン分光研究",,"有機合成化学協会誌","有機合成化学協会","Vol. 77","No. 8","pp. 800-812",2019,Aug. "Shigekazu Ito,Naoto Kato,Yasuhiro Ueta,KOICHI MIKAMI,K.M. Kojima","Muon Spin Rotation (?SR) Study of a Sterically Encumbered Tioaldehyde","ISOCS-28","Phosphorus, Sulfur, and Silicon, and the Related Elements",,"Vol. 194","No. 7","pp. 735-738",2019,July "Kohei Fujii,Haruki Todani,Shigekazu Ito,KOICHI MIKAMI","Design of Phosphinic Acid Catalysts with the Closest Stereogenicity at the α-Position: Synthesis and Application of α-Stereogenic Perfluoroalkyl Phosphinic Acid Catalysts",,"Organic Letters",,"Vol. 21","No. 9","pp. 3387-3391",2019,Apr. "Souichirou Ono,Yuki Yokota,Shigekazu Ito,KOICHI MIKAMI","Regiocontrolled Heptafluoroisopropylation of Aromatic Halides by Copper(I) Carboxylates with Heptafluoroisopropyl-Zinc Reagents",,"Organic Letters",,"Vol. 21","No. 4","pp. 1093-1097",2019,Jan. "Shigekazu Ito","Study of the Air-Tolerant 1,3-Diphosphacyclobutane-2,4-diyl through the Direct Arylation",,,,"Vol. 18",,,2018,Nov. "Masaki Nanko,Satoru Shibuya,Yuya Inaba,Souichirou Ono,Shigekazu Ito,KOICHI MIKAMI","gem-Digold Acetylide Complexes for Catalytic Intermolecular [4 + 2] Cycloaddition: Having Two Gold Centers Is Better for Asymmetric Catalysis",,"Organic Letters","American Chemical Society",,,,2018,Oct. "Shigekazu Ito,Yasuhiro Ueta,Kota Koshino,K.M. Kojima,Iain McKenzie,KOICHI MIKAMI","Observation of a Metastable P-Heterocyclic Radical by Muonium Addition to a 1,3-Diphosphacyclobutane-2,4-diy",,"Angewandte chemie : international edition in English",,"Vol. 57",,,2018,May "Shigekazu Ito,Kota Koshino,KOICHI MIKAMI","CF3-Inspired Synthesis of Air-Tolerant 9-Phosphaanthracenes that Feature Fluorescence and Crystalline Polymorphs",,"Chem. Asian J.",,"Vol. 13",,,2018,Feb. "Shigekazu Ito,Tomokazu Shinozaki,KOICHI MIKAMI","Stereoselective Catalytic Synthesis of Alkynylated Phosphaethenes Leading to the Activation-Free Gold Catalysis",,"Eur. J. Org. Chem.",,,"No. 12","pp. 6889-6900",2017,Dec. "Shigekazu Ito","Topics of 1,3-diphosphacyclobutane-2,4-diyl derivatives: Structural aspects and functionality of isolable heavier congeners of cyclobutane-1,3-diyl and the related molecules",,"TETRAHEDRON LETT",,"Vol. 59","No. 1","pp. 1-13",2017,Nov. "Shigekazu Ito,Naoto Kato,KOICHI MIKAMI","2,3-Dihydro-1H-naphtho[1,8-cd]borinine as a Potent Precursor for Open-Shell Singlet B-Heterocycle",,"Eur. J. Inorg. Chem.",,,,"pp. 2936?2939",2017,June "Shigekazu Ito,Yasuhiro Ueta,Thi Thu Trang Ngo,Kota Koshino,KOICHI MIKAMI","Air-Tolerant 1-Amino-1,3-diphosphacyclobutane-2,4-diyls Featuring High Electron-Donating Property and Low HOMO?LUMO Gap",,,,,,"pp. 3048-3052",2017,June "Shigekazu Ito,Naoto Kato,KOICHI MIKAMI","Stable (Sila)difluoromethylboranes via C?F Activation of Fluoroform Derivatives",,"Chem. Commun.",,"Vol. 53","No. 40","pp. 5546-5548",2017,Apr. "Shigekazu Ito,Tomokazu Shinozaki,KOICHI MIKAMI","Palladium-Catalyzed Arylation of a Sterically Demanding gem-Dibromophosphaethene",,"ChemistrySelect",,"Vol. 1","No. 16","pp. 5260-5264",2016,Sept. "Shigekazu Ito,Yushi Torihata,KOICHI MIKAMI","Exploration of 1-Arylmethyl-1,3-diphosphacyclobutane-2,4-diyls as Hole Transfer Materials",,"ChemistrySelect","Wiley","Vol. 1","No. 12","pp. 3310-3315",2016,Aug. "Yasuhiro Ueta,KOICHI MIKAMI,Shigekazu Ito","Access to Air-Stable 1,3-Diphosphacyclobutane-2,4-diyls by an Arylation Reaction with Arynes",,"Angew. Chem. Int. Ed.","Wiley","Vol. 55","No. 26","pp. 7525-7529",2016,May "Shigekazu Ito","Stereochemistry of N?Benzoyl-5-substituted-1-benzazepines Revisited: Synthesis of the Conformationally Biased Derivatives and Revision of the Reported Structure",,"J. Org. Chem.","American Chemical Society","Vol. 81","No. 8","pp. 3136?3148",2016,Mar. "Shigekazu Ito,Masaki Nanko,Tomokazu Shinozaki,Masafumi Kojima,Kohsuke AIKAWA,KOICHI MIKAMI","Dynamic Chirality Control of tropos DPCB-digold Skeleton by Chiral Binaphthyldicarboxylate",,"Chem. Asian J.","Wiley","Vol. 11","no. 6","pp. 823-827",2016,Mar. "Yasuhiro Ueta,KOICHI MIKAMI,Shigekazu Ito","Chemical Detection of Hydrogen Fluoride by the Phosphorus Congener of Cyclobutane-1,3-diyl",,"Inorganic Chemistry",,"Vol. 54",,,2015,Aug. "Shigekazu Ito,Yasuhiro Ueta,Yushi Torihata,KOICHI MIKAMI","The Air-Stable P-Heterocyclic Biradical for OFET Devices","20th International Conference on Phosphorus Chemistry (ICPC-2014)","Phosphorus sulfur and silicon and the related elements","Taylor and Francis","Vol. 190","No. 5-6","pp. 854-857",2015,July "Masaaki Yoshifuji,Shigekazu Ito","Studies on Intramolecular Cyclization of 2,4,6-Tri-Tert-Butylphenyl?P=C: In Memory of Professor Dr. Friedrich Bickelhaupt, Scheikundig Laboratorium, Vrije Universiteit, Amsterdam","ICPC 2014","Phosphorus, Sulfur, and Silicon and the Related Elements",,"Vol. 190","No. 5-6","pp. 778-784",2015,Apr. "Shigekazu Ito,Masaki Nanko,KOICHI MIKAMI","Preparation via Sterically Promoted SN2’ Substitution and Structural Characteristics of a Mes*-Substituted Tertiary Ethynylphosphine",,"Heteroatom Chem.",,"Vol. 25","No. 5","pp. 422-427",2014,Nov. "Shigekazu Ito,Shunsuke Okabe,Yasuhiro Ueta,KOICHI MIKAMI","Formation of phosphanoxy-substituted phosphaalkenes via sterically promoted cleavage of the P=P diphosphene bond",,"Chem. Commun.",,"Vol. 50","No. 65","pp. 9204-9206",2014,Aug. "Masaaki Yoshifuji,Shigekazu Ito","Theoretical Studies on the Intramolecular Cyclization of 2,4,6-t-Bu3C6H2P=C: and Effects of Conjugation between the P=C and Aromatic Moieties",,"Beilstein J. Org. Chem.",,"Vol. 10",,"p. 1032",2014,June "Ryota Hashimoto,Toshiaki Iida,Kohsuke AIKAWA,Shigekazu Ito,KOICHI MIKAMI","Direct alpha-Siladifluoromethylation of Lithium Enolates with Ruppert-Prakash Reagent via C-F Bond Activation",,"Chem. Eur. J.",,"Vol. 20","No. 10","pp. 2750-2754",2014,May "Motohiro Fujiu,Ryota Hashimoto,Yuzo Nakamura,Kohsuke AIKAWA,Shigekazu Ito,KOICHI MIKAMI","Paradigm Shift from Alkaline (Earth) Metals to Early Transition Metals in Metalorganofluorine Chemistry: Perfluoroalkyl Titanocene(III) Reagents in situ Prepared via Not Titanocene(II) but Titanocene(III) Species",,"Chem. Eur. J.",,"Vol. 20","No. 8","pp. 2382-2386",2014,Apr. "Shigekazu Ito,Masaki Nanko,KOICHI MIKAMI","pai-Extended DPCB for Activation-Free Homogeneous Gold Catalysis",,"ChemCatChem",,"vol. 6","No. 8","pp. 2292-2297",2014,Apr. "Shigekazu Ito,Yasuhiro Ueta,Thi Thu Trang Ngo,Daisuke Hashizume,Jun-ichi Nishida,Yoshiro Yamashita,Koichi Mikami","Direct Arylations for Study of the Air-Stable P?Heterocyclic Biradical: From Wide Electronic Tuning to Characterization of the Localized Radicalic Electrons",,"J. AM. CHEM. SOC.",,"Vol. 135","No. 46","pp. 17610-17616",2013,Nov. "Shigekazu Ito,Takeshi Nakagawa,Koichi Mikami","Stereoselective synthesis, structural aspects, and NMR properties of stable C-fluorinated phosphaalkenes",,"Chem. Commun.",,"Vol. 49","No. 80","pp. 9221-9223",2013,Aug. "Shigekazu Ito,Makoto Kobayashi,KOICHI MIKAMI","Through-space Electrostatic Interaction between the Electron-donating 1,3-Diphosphacyclobutane-2,4-diyl Units",,"ORG. LETT.",,"Vol. 15","No. 13","pp. 3404-3407",2013,June "Shigekazu Ito,Trang Thi Thu Ngo,KOICHI MIKAMI","Silyl Effects on 1,3-Diphosphacyclobutane-2,4-diyl: Ring-Opening of Tetrahydrofuran and Promotion of Reductive PC Cleavage",,"Chem. Asian J.",,"Vol. 8","No. 9","pp. 1976-1980",2013,June "Masaaki Yoshifuji,Shigekazu Ito","Phosphorus Version of the Fritsch- Buttenberg-Wiechell Reaction",,"Phosphorus sulfur and silicon and the related elements","Taylor and Francis","Vol. 188","No. 1","pp. 140-145",2013,Jan. "Motohiro Fujiu,Yuzo Nakamura,Hiroki Serizawa,Kohsuke AIKAWA,Shigekazu Ito,KOICHI MIKAMI","Direct Preparation of Trifluoromethylindium Reagents from Trifluoromethyl Iodide: Effective Trifluoromethylation and Perfluoroalkylation Reagents",,"Eur. J. Org. Chem.",,"Vol. 36",,"pp. 7043-7047",2012,Nov. "Masaaki Yoshifuji,Yuichi Hirano,Gregor Schnakenburg,Rainer Streubel,Edgar Niecke,Shigekazu Ito","New Aspects of 1,3-Diphosphacyclobutane-2,4-diyls",,"Helv. Chim. Acta",,"Vol. 95","No. 10","pp. 1723-1729",2012,Oct. "Shigekazu Ito,Manabu Kikuchi,Joji Miura,Noboru Morita,Masaaki Yoshifuji","Spectroscopic and stability studies on unsymmetrical 1,3-dialkyl-1,3- diphosphacyclobutane-2,4-diyls",,"Journal of Physical Organic Chemistry","Wiley","Vol. 29","No. 9","pp. 733-737",2012,Sept. "Toshiaki Iida,Ryota Hashimoto,Kohsuke AIKAWA,Shigekazu Ito,KOICHI MIKAMI","Umpolung of Fluoroform by C-F Bond Activation: Direct Difluoromethylation of Lithium Enolates",,"Angew. Chem. Int. Ed.",,"Vol. 51","No. 38","pp. 9535-9538",2012,Aug. "伊藤繁和","高安定性リン複素環一重項ビラジカルおよび関連分子系の合成と性質",,"有機合成化学協会誌","有機合成化学協会","Vol. 70","No. 7","pp. 731-741",2012,July "Shigekazu Ito","Unique molecular distortion in the 2,4,6-tri-t-butylphenyl group",,"ARKIVOC",,,"No. 2","pp. 6-14",2012,Jan. "Shigekazu Ito,Lili Zhai,KOICHI MIKAMI","Combination of sp2- and sp3-Type Phosphorus Atoms for Gold Chemistry: Preparation, Structure, and Catalytic Activity of Gold Complexes That Bear Ligated 2-Silyl-1,3-diphosphapropenes",,"Chemistry - An Asian Journal","Wiley","Vol. 6","No. 11","pp. 3077-3083",2011,Nov. "Masaaki Yoshifuji,Stefan Osborn,Anthony J. Arduengo, III,Kenneth T. Belmore,Shigekazu Ito","Intensive NMR Study of 1-t-Butyl-3-methyl-2,4-bis(2,4,6-tri-t-butylphenyl)-1,3-diphosphacyclobutane-2,4-diyl",,"Heteroatom Chemistry",,"Vol. 22","No. 3-4","pp. 331-338",2011,Apr. "Koichi Mikami,Kumiko Fujita,Kazuki Wakabayashi,Shigekazu Ito","[2,3]Wittig Rearrangement of β’-Hydroxyethyl Bis-Allylic Ethers: Highly Regiospecific Entry to Singly Dehydroxylated 19-Nor-1(or 3),25-dihydroxy-vitamin D",,"Heterocycles",,"Vol. 82 (Special issue for Prof. A. Eschenmoser)","no. 2","pp. 1163-1170",2011,Jan. "Yoshifuji, M.,Osborn, S.T.,Arduengo III, A.J.,Belmore, K.A.,Shigekazu Ito","NMR studies of 1-tert-Butyl-3-methyl-2,4-bis(2,4,6-tri-tert-butylphenyl)- 1,3-diphosphacyclobutane-2,4-diyl",,"Phosphorus, Sulfur and Silicon and the Related Elements",,"Vol. 186","No. 4","pp. 845-846",2011, "Shigekazu Ito,Miura, J.,Morita, N.,Yoshifuji, M.,Arduengo III, M.","Modeling the direct activation of dihydrogen by a P 2C 2-Cyclic biradical: Formation of a cyclic bis(P-H γ 5-phosphorane)",,"Phosphorus, Sulfur and Silicon and the Related Elements",,"Vol. 186","No. 4","pp. 754-755",2011, "Shigekazu Ito,Joji Miura,Morita,Masaaki Yoshifuji,Anthony J. Arduengo, III","Synthesis and Properties of Oligo(biradicals) Composed of 1,3-Diphosphacyclobutane-2,4-diyl Units and Benzyl-type Linkers",,"Heteroatom Chemistry",,"Vol. 21","No. 6","pp. 404-411",2010,Nov. "Shigekazu Ito,Joji Miura,Morita,Masaaki Yoshifuji,Anthony J. Arduengo, III","Synthesis and physicochemical properties of stable 1,3-diphosphacyclobutane-2,4-diyls bearing sulfanyl groups",,"C R Chimie",,,,,2010,Aug. "Shigekazu Ito,Joji Miura,Morita,Masaaki Yoshifuji,Anthony J. Arduengo, III","Diverse Reactions of Sterically Protected 1,3-Diphosphacyclobutane-2,4-diyls with Hydride",,"Dalton Transactions",,"Vol. 39","No. 35","pp. 8281-8287",2010,Aug. "K. Mikami,T. Murase,L. Zhai,Y. Itoh,S. Ito","Highly enantioselective synthesis of α-(perfluoroalkyl)amines via hydrogenation of enamide precursors in the presence of chiraphos-rhodium catalyst",,"Tetrahedron: Asymmetry",,"Vol. 21","no. 9-10","pp. 1158-1161",2010,May "K. Mikami,T. Murase,L. Zhai,S.Kawauchi,Y. Itoh,S. Ito","Sequential perfluoroalkylation and asymmetric reduction of nitriles triggered with perfluoroalkyl titanates: catalytic asymmetric synthesis of perfluoroalkyl amines",,"Tetrahedron Letters",,"Vol. 51","no. 10","pp. 1371-1373",2010,Mar. "Shigekazu Ito,Shuhei Kusano,Noboru Morita,KOICHI MIKAMI,Masaaki Yoshifuji","Ligand effect of bulky 2,2-dialkyl-1-phosphaethenes on Au-catalyzed cycloisomerization of 1,6-enynes and lactonization of pent-4-ynoic acids",,"J. Organomet. Chem.",,"Vol. 685",,"pp. 291-296",2010,Feb. "S. Ito, T. Momozaki, Y. Kishimoto, J. Abe, F. Iwahori,Taro Momozaki,Yuta Kishimoto,Jiro Abe,Fumiyasu Iwahori","Demonstration of NMR Quantum Information Processing Utilizing 31P Nuclei of Phosphorus Heterocycles",,"Chem. Lett.",,"vol. 38","no. 12","pp. 1194-1195",2009,Dec. "Shigekazu Ito,Joji Miura,Morita,Masaaki Yoshifuji,Anthony J. Arduengo, III","Modeling the Direct Activation of Dihydrogen by a P2C2 Cyclic Biradical: Formation of a Cyclic Bis(P?H λ5-phosphorane)",,"Inorg. Chem.",,"vol. 48","No. 17","pp. 8063-8065",2009,Sept. "Shigekazu Ito,Hideaki Miyake,Masaaki Yoshifuji","Study on Synthesis and Structure of Sterically Demanding 6-Phosphafulvenes",,"Phosphorus, Sulfur, and Silicon",,"Vol. 184",,"p. 917",2009,Apr. "Shigekazu Ito,Joji Miura,Morita,Masaaki Yoshifuji,Anthony J. Arduengo, III","Catenation of 1,3-Diphosphacyclobutane-2,4-diyl Units Having 2,4,6-Tri-tertbutylphenyl",,"Z. Anorg. Allg. Chem.",,"Vol. 635",,"p. 488",2009,Mar. "Shigekazu Ito,Joji Miura,Morita,Masaaki Yoshifuji,Anthony J. Arduengo, III","Poly(Biradicals): Oligomers of 1,3-Diphosphacyclobutane-2,4-diyl Units",,"Angew. Chem. Int. Ed.",,"Vol. 47",,"p. 6418",2008,July "Shigekazu Ito,Hideaki Miyake,Satoshi Sekiguchi,Matthias Freytag,Masaaki Yoshifuji","Chemistry of Fulvene-Type P-Heterocyclic Compounds",,"Phosphorus, Sulfur, and Silicon",,"vol. 183",,"p. 640",2008,June "Masaaki Yoshifuji,Anthony J. Arduengo, III,Shigekazu Ito","Studies on Stable 1,3-Diphosphacyclobutane-2,4-diyls",,"Phosphorus, Sulfur, and Silicon",,"Vol. 183",,"p. 335",2008,June "Shigekazu Ito,Matthias Freytag,Hongze Liang,Katsunori Nishide,Masaaki Yoshifuji","Design, Synthesis, and Application of Phosphaalkenes to Unique Palladium and Gold Catalysts",,"Phosphorus, Sulfur, and Silicon",,"vol. 183",,"p. 553",2008,May "Shigekazu Ito,Sou Hashino,Morita,Masaaki Yoshifuji,Daisuke Hirose,Masae Takahashi,Yoshiyuki Kawazoe","Facile [3+2] Dimerization and Formal Dehydrogenative Coupling Mode of a Cyanophenylphosphaallene",,"Tetrahedron",,"vol. 63",,"p. 10246",2007,Nov. "Shigekazu Ito,Hideaki Miyake,Masaaki Yoshifuji","1,3-Dipolarophile Character of an Extremely Bulky Phosphaakyne Mes*C≡P (Mes* = 2,4,6-t-Bu3C6H2) Leading to the Formation of 1,2,4-Diazaphospholes of Unique H-Bonding Aspect",,"Eur. J. Inorg. Chem.",,,,"p. 3491",2007,July "Shigekazu Ito,Manabu Kikuchi,Hiroki Sugiyama,Masaaki Yoshifuji","Synthesis and Properties of Air-Stable 1,3-Diphosphacyclobutane-2,4-diyls and the Related Compounds",,"J. Organomet. Chem.",,"vol. 692",,"p. 2761",2007,May "Kozo Toyota,Keiko Horikawa,Rader S. Jensen,kohei Omori,Subaru Kawasaki,Shigekazu Ito,Masaaki Yoshifuji,Morita","An Improved Preparative Method for 1,2-Diaryl-3,4-diphosphinidenecyclobutenes and Its Application to the Studies of 1,2-Bis(arylthienyl)-3,4-diphosphinidenecyclobutenes",,"Bull. Chem. soc. Jpn",,"vol. 80",,"p. 1580",2007,Apr. "Shigekazu Ito,Hiromichi Jin,Masaaki Yoshifuji","Preparation and X-ray Analyses of Siloxane-bridged Acyclic and 8-Membered Cyclic Phosphaethenes",,"J. Organomet. Chem.",,"vol. 692",,"p. 243",2007,Feb. "Matthias Freytag,Shigekazu Ito,Masaaki Yoshifuji","Coordination Behavior of Sterically Protected Phosphaalkenes on the AuCl Moiety Leading to Catalytic 1,6-Enyne Cycloisomerization",,"Chem. Asian J.",,"vol. 1",,"p. 693",2006,Nov. "Masaaki Yoshifuji,Anthony J. Arduengo, III,Tatyana A. Konovalova,Lowell D. Kispert,Manabu Kikuchi,Shigekazu Ito","Oxidation of 1,3-Diphosphacyclobutane-2,4-diyl with Ammoniumyl Antimonate and EPR Study of the Corresponding Cation Radical",,"Chem. Lett.",,"vol. 35",,"p. 1136",2006,Nov. "Shigekazu Ito,Manabu Kikuchi,Masaaki Yoshifuji,Anthony J. Arduengo, III,Tatyana A. Konovalova,Lowell D. Kispert","Preparation and Characterization of an Air-tolerant 1,3-Diphosphacyclobuten-4-yl Radical",,"Angew. Chem. Int. Ed.",,"vol. 45",,"p. 4341",2006,June "Shigekazu Ito,Katsunori Nishide,Masaaki Yoshifuji","Structural and Coordination Properties of 3,3-Diphenyl-1-(2,4,6-tri-t-butylphenyl)-2-trimethylsilyl-1,3-diphosphapropene Derivatives Showing Interesting Conformational Features",,"Organometallics",,"vol. 25",,"p. 1424",2006,Apr. "Shigekazu Ito,Matthias Freytag,Masaaki Yoshifuji","Structural and Coordination Properties of 1,2-Bis(cyclopropyl)-3,4-bis(2,4,6-tri-t-butylphenyl)-3,4-diphosphinidenecyclobutene Prepared by Dehydrogenative Homocoupling of 3-Cyclopropyl-1-(2,4,6-tri-t-butylphenyl)-1-phosphaallene",,"Dalton Trans.",,,,"p. 710",2006,Feb. "Katsunori Nishide,Hongze Liang,Shigekazu Ito,Masaaki Yoshifuji","Preparation and Properties of Palladium(II) Complexes of 3-Oxo-1-(2,4,6-tri-t-butylphenyl)-1,3-diphosphapropenes",,"J. Organomet. Chem.",,"vol. 690",,"p. 4809",2005,Aug. "Shigekazu Ito,Hiromichi Jin,Shigeo Kimura,Masaaki Yoshifuji","Synthesis, Structure, and Reactivity of Novel 3,4-Diphosphacyclobutenes Carrying Silyl Groups",,"J. Org. Chem.",,"vol. 70",,"p. 3537",2005,July "Shigekazu Ito,Hongze Liang,Masaaki Yoshifuji","1,3-Diphosphapropenes for Novel Chemistry of Metal Complexes",,"J. Organomet. Chem.",,"vol. 690",,"p. 2531",2005,June "Shigekazu Ito,Hideaki Miyake,Masaaki Yoshifuji,Tibor H?ltzl,Tam?s Veszpr?mi","Synthesis of Phosphorus Ylides Bearing a P?H Bond from a Kinetically Stabilized 1,3,6-Triphosphafulvene",,"Chem. Eur. J.",,"vol. 11",,"p. 5960",2005,June "Shigekazu Ito,Hideaki Miyake,Masaaki Yoshifuji","Preparation of 1,3-Diphosphabuta-1,3-dienes from Sterically Encumbered Phosphaalkyne and Phosphaethenyllithium",,"Heteroat. Chem.",,"vol. 16",,"p. 357",2005,May "Masaaki Yoshifuji,Hiroki Sugiyama,Shigekazu Ito","Syntheses and Reactivity of Novel Unsaturated Cyclic Compounds Containing Phosphorus Atoms",,"J. Organomet. Chem.",,"vol. 690",,"p. 2515",2005,May "Shigekazu Ito,Satoshi Sekiguchi,Matthias Freytag,Masaaki Yoshifuji","An Efficient Synthetic Method of 1-(2,4,6-Tri-t-butylphenyl)-3-phenyl-1-phosphaallenes [Mes*P=C=CR?Ph; R = H, SiMe3] from Dibromophosphaethene [Mes*P=CBr2] (Mes* = 2,4,6-t-Bu3C6H2)",,"Bull. Chem. Soc. Jpn.",,"vol. 78",,"p. 1142",2005,Mar. "Shigekazu Ito,Hideaki Miyake,Hiroki Sugiyama,Masaaki Yoshifuji","Reactivity of a Kinetically Stabilized 1,3,6-Triphosphafulvene toward Some Nucleophiles",,"Tetrahedron Lett.",,"vol. 45",,"p. 7019",2004,Oct. "Hongze Liang,Shigekazu Ito,Masaaki Yoshifuji","Chemistry and Recent Development of Low-Coordinated Phosphaalkenes",,"Chinese Journal of Organic Chemistry",,"Vol. 24","No. 10","pp. 1310-1316",2004,Aug. "Shigekazu Ito,Masaaki Yoshifuji","Product Class 23: Diphosphinines. Two P Atoms",,"Science of Synthesis (Houben-Weyl Methods of Molecular Transformations)","Thieme","vol. 16",,"pp. 1399-1410",2004,July "Shigekazu Ito,Satoshi Sekiguchi,Masaaki Yoshifuji","Formation and Electrochemical Properties of a 1,4-Diphosphafulvene Including Formal Dimerization of Phosphaallene",,"J. Org. Chem.",,"vol. 69",,"p. 4181",2004,May "Shigekazu Ito,Hideaki Miyake,Hiroki Sugiyama,Masaaki Yoshifuji","Characterization of a 3,4-Dihydro-1,3,4-triphosphacyclopenta[a]indene as an Isomer of a Mes*-Substituted 1,3,6-Triphosphafulvene (Mes* = 2,4,6-tBu3C6H2)",,"Heterocycles",,"vol. 63",,"p. 2591",2004,May "Shigekazu Ito,Matthias Freytag,Satoshi Sekiguchi,Masaaki Yoshifuji","Monochalcogenization of a Sterically Encumbered 1,4-Diphosphafulvene",,"Sci. Rep. Tohoku Univ. 1st Ser.",,"vol. 81",,"p. 17",2004,Apr. "Shigekazu Ito,Hiroki Sugiyama,Masaaki Yoshifuji","Synthesis and Characterization of Kinetically Stabilized 1,3-Diphosphacyclobutene Derivatives",,"Phosphorus Sulfur Silicon Relat. Elem.",,"vol. 179",,"p. 785",2004,Apr. "Hongze Liang,Shigekazu Ito,Masaaki Yoshifuji","Characterization of a Novel Binuclear Palladium(II) Complex Formed from the Reaction of 2-Chloro-3,3-diphenyl-1-(2,4,6-tri-tert-butylpheneyl)¬1,3-diphosphapropene with Tetrakis(triphenylphosphine)palladium(0) Including Hydrolysis",,"Z. Anorg. Allg. Chem.",,"vol. 630",,"p. 1177",2004,Apr. "Hiroki Sugiyama,Shigekazu Ito,Masaaki Yoshifuji","Preparation and Reactions of 1,3-Diphosphacyclobutane-2,4-diyls That Feature an Amino Substituent and/or a Carbonyl Group",,"Chem. Eur. J.",,"vol. 10",,"p. 2700",2004,Mar. "Shigekazu Ito,Hongze Liang,Masaaki Yoshifuji","Preparation, Structure, and Some Coordination Properties of 2-Chloro-3,3-diphenyl-3-thioxo-1-(2,4,6-tri-t-butylphenyl)-1,3-diphosphapropene",,"Chem. Commun.",,,"no. 3","pp. 398-399",2004,Feb. "Hongze Liang,Shigekazu Ito,Masaaki Yoshifuji","Preparation and Coordination Properties Including Catalytic Activities of a Bulky 2-Methyl-3-thioxo-1,3-diphosphapropene",,"Org. Lett.",,"vol. 6",,"p. 425",2004,Feb. "Shigekazu Ito,Satoshi Sekiguchi,Masaaki Yoshifuji","Topochemical [2+2] Dimerization of Kinetically Stabilized 1-Phosphaallenes in the Solid State",,"Eur. J. Org. Chem.",,,,"p. 4838",2003,Nov. "Katsunori Nishide,Shigekazu Ito,Masaaki Yoshifuji","Preparation of Carbonyltungsten(0) Complexes of 2-Pyridylphosphines Showing a Stepwise Coordination Pattern by Way of Monodentate to Chelate Mode",,"J. Organomet. Chem.",,"Vol. 682","No. 1","pp. 79?84",2003,Oct. "Fran?ois Rivi?re,Hongze Liang,Shigekazu Ito,Masaaki Yoshifuji","Stereoselective Formation and Reactivity of Sterically Encumbered Anilinodiphosphene Derivatives",,"Sci. Rep. Tohoku Univ. 1st Ser.",,"Vol. 80",,"pp. 21-25",2003,Oct. "Masaaki Yoshifuji, Shigekazu Ito","Chemistry of Phosphanylidene Carbenoids",,"Top. Curr. Chem.","Springer","vol. 223",,"pp. 67-89",2003,Sept. "Hongze Liang,Shigekazu Ito,Masaaki Yoshifuji","Preparation, Structure and Coordination Properties of 3,3-Bis(diisopropylamino)-3-thioxo-1-(2,4,6-tri-tert-butylphenyl)-1,3-diphosphapropene",,"Org. Biomol. Chem.",,"vol. 1","no. 17","pp. 3054?3058",2003,Sept. "Hongze Liang,Katsunori Nishide,Shigekazu Ito,Masaaki Yoshifuji","Preparation, Properties, and Catalytic Activities of Transition-Metal Complexes Containing Ligated 2-Methyl-3,3-diphenyl-1,3-diphosphapropene Skeleton",,"Tetrahedron Lett.",,"Vol. 44","No. 45","pp. 8297?8300",2003,Sept. "Hiroki Sugiyama,Shigekazu Ito,Masaaki Yoshifuji","Synthesis of a 1,3-Diphosphacyclobutane-2,4-diyl from Mes*C≡P (Mes* = 2,4,6-tBu3C6H2)",,"Angew. Chem. Int. Ed.",,"vol. 42","no. 32","pp. 3802-3804",2003,Aug. "Shigekazu Ito,Hiroki Sugiyama,Masaaki Yoshifuji","Preparation of 2,4-Bis(2,4,6-tri-t-butylphenyl)-1,3-diphosphacyclobutenes from 2-(2,4,6-Tri-t-butylphenyl)-1-phosphaethyne and Alkyllithiums",,"Chem. Commun.",,,"No. 16","pp. 1744?1745",2003,Aug. "Shigeo Kimura,Shigekazu Ito,Masaaki Yoshifuji,Tam?s Veszpr?mi","Experimental and Theoretical Studies on the Conjugation of Phosphorus-Carbon Double Bond with Cyclopropyl Group",,"J. Org. Chem.",,"vol. 68","no. 17","pp. 6820?6823",2003,Aug. "Shigekazu Ito,Shigeo Kimura,Masaaki Yoshifuji","Copper-Mediated Coupling Reaction of Kinetically Stabilized 1-Methyl-2-phosphaethenyllithiums Involving an Isomerization to a 3-Phospha-2-propenyllithium Derivative",,"Chem. Lett.",,,," 708-709",2003,July "Shigekazu Ito,Katsunori Nishide,Masaaki Yoshifuji","Synthesis of Pentacarbonyltungsten(0) Complexes of Bulky 1,2-Diphosphabut-1-en-3-ynes as a Heavier Enyne Congener",,"Tetrahedron Lett.",,"Vol. 43","No. 29","pp. 5075-5078",2003,July "Shigekazu Ito,Shigeo Kimura,Masaaki Yoshifuji","Preparation and Properties of Kinetically Stabilized Phosphaethene Derivatives Carrying the Methylsulfanyl Group",,"Bull. Chem. Soc. Jpn",,"Vol. 76","No. 2","pp. 405-412",2003,Apr. "Shigekazu Ito,Shigeo Kimura,Masaaki Yoshifuji","Preparation, Structure, and Reaction of a Sterically Encumbered 1-Phosphaallene Containing a Cyclopropylidene Moiety",,"Org. Lett.",,"Vol. 5","no. 7","pp. 1111?1114",2003,Apr. "Fran?ois Rivi?re,Shigekazu Ito,Masaaki Yoshifuji","Preparation and Reaction of Sterically Crowded N-(2,4-Di-t-butylphenyl)-N-methylaminodichlorophosphine",,"Tetrahedron Lett.",,"Vol. 43","No. 1","pp. 119-121",2003,Jan. "Shigeo Kimura,Shigekazu Ito,Masaaki Yoshifuji","Preparation of Some 1,4-Diphospha-1,3-butadienes by Oxidative Coupling Reaction","ICPC-15","Phosphorus Sulfur Silicon Relat. Elem.",,"Vol. 177",,"p. 2009",2002,Nov. "Hiroki Sugiyama,Shigekazu Ito,Masaaki Yoshifuji","Synthesis and Structure of a Kinetically Stabilized 1,3,6-Triphosphafulvene","ICPC-15","Phosphorus Sulfur Silicon Relat. Elem.",,"Vol. 177",,"pp. 2011?2012",2002,Nov. "Shigekazu Ito,Masaaki Yoshifuji","Coordination Chemistry of a Bulky 1,3-Diphosphapropene with Carbonyltungsten(0) Moieties","ICPC-15","Phosphorus Sulfur Silicon Relat. Elem.",,"Vol. 177",,"pp. 1609?1612",2002,Oct. "Shigekazu Ito,Masaaki Yoshifuji","Reactions of Sterically Encumbered 1-Phosphapropen-1-ones Including a Nucleophilic Substitution and an Intramolecular Cyclization",,"Sci. Rep. Tohoku Univ. 1st Ser.",,"Vol. 79",,"pp. 9-16",2002,Oct. "伊藤繁和,岩本 武明","東北大学理学部化学科学生実験における環境調和型化学反応の導入",,"化学と教育",,"vol. 50","no. 6","pp. 433-436",2002,June "Masaaki Yoshifuji,Shigekazu Ito,Hiroki Sugiyama","1,3,6-Triphosphafulvene Bearing Three Low-Coordinated Phosphorus Atoms",,"Phosphorus Sulfur Silicon Relat. Elem.",,"Vol. 168",,"pp. 315-319",2001,Oct. "Fumiyuki Ozawa,Shogo Yamamoto,Seiji Kawagishi,Masatomi Hiraoka,Shintaro Ikeda,Tatsuya Minami,Shigekazu Ito,Masaaki Yoshifuji","Dehydrogenative Silylation of Ketones Catalyzed by Diphosphinidenecyclobutene-Coordinated Platinum(II) Complexes",,"Chem. Lett.",,"Vol. 30","No. 10","pp. 972?973",2001,Oct. "Shigekazu Ito,Masaaki Yoshifuji","Preparation of Pentacarbonyltungsten(0) Complexes of 2-Chloro-3,3-diphenyl-1-(2,4,6-tri-t-butylphenyl)-1,3-diphosphapropene",,"Chem. Commun.",,,,"pp. 1208-1209",2001,Aug. "Shigekazu Ito,Masaaki Yoshifuji","Transmetallation Reaction of 1-Phenylthio- or 1-Tolylthio-2-(2,4,6-tri-t-butylphenyl)-2-phosphaethenyllithium with Copper(II) and Mercury(II)",,"Chem. Lett.",,,,"pp. 1390-1391",2000,Dec. "Shigekazu Ito,Hiroki Sugiyama,Masaaki Yoshifuji","Isolation of a Kinetically Stabilized 1,3,6-Triphosphafulvene,",,"Angew. Chem. Int. Ed.",,"Vol. 39","No. 15","pp. 2781-2783",2000,Aug. "Shigekazu Ito,Kozo Toyota,Masaaki Yoshifuji","Reactions of a Sterically Protected 2,3-Dichloro-1,4-diphospha-1,3-butadiene with Some Alkyl and Hydrido Lithium Reagents",,"Heteroat. Chem.",,"Vol. 11","No. 3","pp. 171-176",2000,Aug. "Shigekazu Ito,Kozo Toyota,Masaaki Yoshifuji","Reactions of Sterically Protected 1-Halo- and 1-Pseudohalo-2-phosphaethenyllithiums","ICPC-14","Phosphorus, Sulfur Silicon Relat. Elem.",,"Vol. 147",,"p. 1269",1999,Aug. "Shigekazu Ito,Kozo Toyota,Masaaki Yoshifuji","Preparation and Structure of 2,3-Dichloro-1,4-bis(2,4,6-tri-t-butylphenyl)-1,4-diphospha-1,3-butadiene",,"Chem. Lett.",,,"no. 8","pp. 747?748",1998,Aug. "Shigekazu Ito,Masaaki Yoshifuji","The Phenylthio Group as a New Substituent on the 2-Position of Sterically Protected 1-Phosphaethenes",,"Chem. Lett.",,,"No. 7","pp. 651-652",1998,July "Shigekazu Ito,Kozo Toyota,Masaaki Yoshifuji","A Convenient Synthesis of a Sterically Protected 1,4-Diphosphabutatriene and Its Pentacarbonyltungsten Complexes",,"J. Organomet. Chem.",,"Vol. 553",," 135?140",1998,Mar. "Shigekazu Ito","Reactions and Properties of Sterically Protected 1-Halo-2-phosphaethenyllithiums",,,,,,,1998,Mar. "Shigekazu Ito,Kozo Toyota,Masaaki Yoshifuji","Formation of 6,8-Di-t-butyl-3,4-dihydro-4,4-dimethyl-1-phosphanaphthalene by the Reaction of 2,2-Dibromo-1-(2,4,6-tri-t-butylphenyl)-1-phosphaethene with Butyllithium",,"Chem. Commun.",,,"no. 17","pp. 1637-1638",1997,Sept. "Masaaki Yoshifuji,Shigekazu Ito,Kozo Toyota,Masafumi Yasunami","Reaction of 2,4-Di-t-butyl-6-methylphenylphosphonous Dichloride with Chloroform in the Presence of Lithium Diisopropylamide",,"Heteroat. Chem.",,"Vol. 7",,"pp. 23-27",1996,Feb. "Masaaki Yoshifuji,Shigekazu Ito,Kozo Toyota,Masafumi Yasunami","Preparation of Some Multi-functionalized Methylenephosphines by Reactions of Chloro[(2,4,6-tri-t-butylphenyl)phosphinidene]methyllithium with Carbonyl Compounds,” Bul",,"Bull. Chem. Soc. Jpn.",,"Vol. 68","No. 4","pp. 1206-1212",1995,Apr.