Copper-Catalyzed Oxidative Amidation of Aldehydes with Amine Salts: Synthesis of Primary, Secondary, and Tertiary Amides
作者:Subhash Chandra Ghosh、Joyce S. Y. Ngiam、Abdul M. Seayad、Dang Thanh Tuan、Christina L. L. Chai、Anqi Chen
DOI:10.1021/jo301252c
日期:2012.9.21
aldehydes with economic ammonium chloride or amine hydrochloride salts has been developed for the synthesis of a wide variety of amides by using inexpensive copper sulfate or copper(I) oxide as a catalyst and aqueous tert-butyl hydroperoxide as an oxidant. This amidation reaction is operationally straightforward and provides primary, secondary, and tertiary amides in good to excellent yields for most
用于与经济氯化铵醛的酰胺化的实用方法或胺盐酸盐已经通过使用廉价的硫酸铜或铜(I)氧化物作为催化剂和水性开发了各种各样酰胺的合成叔丁基过氧化氢作为氧化剂。该酰胺化反应在操作上是直接的,并且在大多数情况下在温和的条件下利用廉价且容易获得的试剂以良好的产率和优异的产率提供伯,仲和叔酰胺。由游离胺原位形成胺盐扩大了反应的底物范围。还从其相应的手性胺合成手性酰胺,而没有可检测的外消旋作用。该酰胺形成反应的实用性已在抗心律不齐药物N-乙酰普鲁卡因胺的有效合成中得到证明。