Chemistry Letters

Preparation of Sterically Protected 3, 4-Bis [(2, 4, 6-tri-t-butylphenyl) phosphinidene]-1, 2-bis [4-(4-vinylphenyl) butyl] cyclobutene and Its Polymers.

N Yamada, K Toyota, M Yoshifuji

Index: Yamada, Naoki; Toyota, Kozo; Yoshifuji, Masaaki Chemistry Letters, 2001 , # 3 p. 248 - 249

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Citation Number: 14

Abstract

Two new sterically protected 3, 4-diphosphinidenecyclobutenes, ie, 1, 2-bis [4-(4- methylphenyl) butyl]-3, 4-bis [(2, 4, 6-tri-t-butylphenyl) phosphinidene] cyclobutene, and 3, 4- bis [(2, 4, 6-tri-t-butylphenyl) phosphinidene]-1, 2-bis [4-(4-vinylphenyl) butyl] cyclobutene, were prepared. Copolymerization of the latter with styrene was studied. Treatment of [6-(4- vinylphenyl) hex-1-ynyl](2, 4, 6-tri-t-butylphenyl) phosphine with butyllithium and 1, 2- ...