Organic letters

Sequential rhodium-, silver-, and gold-catalyzed synthesis of fused dihydrofurans

H Wang, JR Denton, HML Davies

文献索引：Wang, Hengbin; Denton, Justin R.; Davies, Huw M. L. Organic Letters, 2011 , vol. 13, # 16 p. 4316 - 4319

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被引用次数: 25

摘要

A triple cascade process was developed for the rapid synthesis of polycyclic benzo-fused dihydrofurans. The first step is a rhodium-catalyzed cyclopropanation of α-aryldiazoketones with alkenes. This is followed by a silver-catalyzed ring expansion to dihydrofurans, which then undergo a gold-catalyzed cyclization to form benzo-fused dihydrofurans.