Pd-catalyzed branching cyclizations of enediyne-imides toward furo[2,3-b]pyridines
Zexiang Li1, Fei Ling, Dong Cheng
1Department of Chemistry, Zhejiang University , 20 Yugu Road, Hangzhou 310027, P. R. China.
Abstract:
The convergent synthesis of a class of enediyne-imides as well as their palladium-catalyzed branching cyclizations, which can be accomplished in two ways leading to a set of polysubstituted furo[2,3-b]pyridines upon using the N-tosyl carboxamide moiety as an N,O-bisnucleophile, are presented.
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