論文

• 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, Apr. 2007.
• 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, Aug. 2000.
• 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, Aug. 1998.
• 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, Mar. 1998.
• 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, Sept. 1997.
• 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, Feb. 1996.
• 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, Apr. 1995.

国際会議発表 (査読有り)

• 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, Aug. 1999.

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