A general and efficient CuI/N-carbazolyl-1H-pyrrole-2-carbohydrazide catalyst system was developed for the N-arylation of cyclopropylamine using aryl bromides at room temperature. Herein, 5 mol % CuI and 5 mol % of the ligand were used to synthesize N-aryl cyclopropylamines in moderate to excellent yields. This protocol was scaled up to produce the desired product at gram levels and has been generalized
开发了一种通用且高效的 CuI/ N-
咔唑基-1H-
吡咯-2-碳酰
肼催化剂体系,用于在室温下使用芳基
溴进行
环丙胺的N-芳基化。在此,使用 5 mol% CuI 和 5 mol%
配体以中等至优异的产率合成N-芳基
环丙胺。该方案被放大以生产克级的所需产物,并已推广到室温下芳基
溴和胺之间的 C-N 偶联。