Synthesis of Quinazolines and Tetrahydroquinazolines: Copper-Catalyzed Tandem Reactions of 2-Bromobenzyl Bromides with Aldehydes and Aqueous Ammonia or Amines
作者:Xuesen Fan、Bin Li、Shenghai Guo、Yuanyuan Wang、Xinying Zhang
DOI:10.1002/asia.201301296
日期:2014.3
An efficient synthesis of diversely substituted quinazolines and 1,2,3,4‐tetrahydroquinazolines through copper‐catalyzed tandem reactions of the readily available 2‐bromobenzyl bromides, aldehydes, and aqueous ammonia or amines has been developed. By using ammonia and simple aliphatic amines as the nitrogen source, the present method provides a versatile and practical protocol for the synthesis of
通过容易获得的2-溴苄基溴化物,醛类以及氨水或胺类的铜催化串联反应,可以有效合成各种取代的喹唑啉和1,2,3,4-四氢喹唑啉。通过使用氨和简单的脂肪族胺作为氮源,本方法为合成喹唑啉和1,2,3,4-四氢喹唑啉提供了一种通用而实用的方法。