Dibromoisobenzofuran as a formal equivalent of didehydroisobenzofuran: Reactive platform for expeditious assembly of polycycles
H Haneda, S Eda, M Aratani, T Hamura
Index: Haneda, Hiroshi; Eda, Shohei; Aratani, Masato; Hamura, Toshiyuki Organic Letters, 2014 , vol. 16, # 1 p. 286 - 289
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Citation Number: 10
Abstract
Two-directional annulation of dibromoisobenzofuran, a formal equivalent to didehydroisobenzofuran, was developed. Importantly, selective bromine–lithium exchange allows the tandem generation of benzynes and dual cycloadditions with two different arynophiles. Also described is the application to the synthesis of a substituted pentacene.
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