Carbamate-catalyzed enantioselective bromolactamization. 2015

Yi An Cheng, and Wesley Zongrong Yu, and Ying-Yeung Yeung
Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543 (Singapore).

A highly facile, efficient, and enantioselective bromolactamization of olefinic amides was effected by a carbamate catalyst and ethanol additive. The amide substrates underwent N-cyclization predominantly to give a diverse range of enantioenriched bromolactam products containing up to two stereogenic centers.

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