An efficient and general base-promotedreaction of 1,1-dichloroalkenes with secondary sulfonamides and amides for the synthesis of (Z)-β-chloro-enamides has been described. This reaction exhibits functional group tolerance under simple and mild conditions. Mechanistic study indicated that a stereoselective trans-hydroamidation of alkynyl chlorides generated in situ from 1,1-dichloroalkenes was the
已经描述了用于合成 ( Z )-β-氯烯酰胺的 1,1-二氯烯烃与仲磺酰胺和酰胺的有效且通用的碱促进反应。该反应在简单温和的条件下表现出官能团耐受性。机理研究表明,1,1-二氯烯烃原位生成的炔基氯的立体选择性反式加氢酰胺化反应是关键步骤。