"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
"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
"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.
"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.
"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,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.