The Journal of organic chemistry

Generation of benzocyclobutadiene derivatives from zirconaindene derivatives

C Chen, C Xi, Y Liu, X Hong

Index: Chen, Chao; Xi, Chanjuan; Liu, Yuanyuan; Hong, Xiaoyin Journal of Organic Chemistry, 2006 , vol. 71, # 14 p. 5373 - 5376

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Citation Number: 18

Abstract

Takahashi et al. reported on the generation of cyclobutadienes from the reaction of zirconacyclopentadienes with CpCo(PPh 3 ) 2 . 4 Recently, we and another group reported the intramolecular coupling reaction of zirconacyclopentadienes in the presence of CuCl and benzoquinone produced cyclobutadiene derivatives, which easily transformed into cyclooctatetraene (COT) derivatives. 3 Accordingly, we envisioned that the coupling reaction of zirconaindenes 3 under ...