Organic letters
Copper-Catalyzed [3+3] Cycloaddition of Ethynyl Methylene Cyclic Carbamates with N,N'-Cyclic Azomethine Imines Enabled by an Extended C═C Bond.
Ya-Hui Li, Xiang-Ping Hu
Published: 202610.1021/acs.orglett.5c05108
Abstract
A copper-catalyzed diastereoselective cross [3+3] dipolar cycloaddition of ethynyl methylene cyclic carbamates with N,N'-cyclic azomethine imines has been realized. The presence of an extended C═C bond in N,N'-cyclic azomethine imines distinctively c…
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