Syntheses of p-terphenyls and 11, 12-dihydroindeno [2, 1-a] fluorene by one-pot benzannulation of Diels–Alder reactions of trans-1, 2-dichloroethene and dienes

…, YC Lin, LT Chou, YZ Chen, WQ Liu, CL Chuang

Index: Ho, Jinn-Hsuan; Lin, Yu-Chen; Chou, Li-Ting; Chen, Ying-Zhe; Liu, Wei-Qi; Chuang, Chao-Li Tetrahedron Letters, 2013 , vol. 54, # 15 p. 1991 - 1993

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Citation Number: 3

Abstract

A series of substituted p-terphenyls and 11, 12-dihydroindeno [2, 1-a] fluorene were successfully synthesized by one-pot benzannulation of Diels–Alder reaction with 1, 2- dichloroethene as an acetylene equivalent dienophile. Two chlorine atoms could be good leaving groups to easily undergo subsequent elimination reactions of Diels–Alder products at a high temperature.