Bulletin of the Chemical Society of Japan

Synthesis of 2, 7-di-t-butyl-4, 5, 9, 10-tetraphenyltricyclo [6.2. 0.03, 6] deca-1, 3 (6), 4, 7, 9-pentaene. A benzo [1, 2: 4, 5] dicyclobutene.

F Toda, Y Takahara

Index: Toda,F.; Takahara,Y. Bulletin of the Chemical Society of Japan, 1976 , vol. 49, p. 2515 - 2517

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Citation Number: 16

Abstract

The title compound (15) which has two cyclobutadienes fused to a benzene ring, was synthesized by heating dl-(7), meso-3, 8-di-t-butyl-1, 5, 6, 10-tetraphenyldeca-3, 4, 6, 7- tetraene-1, 9-diyne (8), or E, Z,-3, 4-bis (1-t-butyl-3-phenyl-2-propynylidene)-1, 2-diphenyl-1- cyclobutene (12).