A copper catalyzed intramolecular 1,2-carboboration of o-aldiminyl cinnamate has been realized in both regio- and stereoselective fashions. This reaction provides a convenient entry to highly valuable and otherwise challenging cis-2,3,4-trisubstituted tetrahydroquinolines carrying a 4-boryl group. An unusual non-Michael addition intermediate or alternatively, a cyclic enolate is proposed to account
铜-邻二亚甲基
肉桂酸酯的分子内1,2-碳羰基化已经以区域选择性和立体选择性两种方式实现。该反应为携带有价值的且具有挑战性的带有4-
硼基的顺式-2,3,4-三取代的
四氢喹啉提供了便利。提出了一种不寻常的非迈克尔加成中间体或环状烯醇化物,以解释最终产品中令人感兴趣的顺式构型。