Copper(I)-Mediated Cascade Reactions: An Efficient Approach to the Synthesis of Functionalized Benzofuro[3,2-<i>d</i>]pyrimidines
作者:Bo Chao、Shijun Lin、Qingdong Ma、Dong Lu、Youhong Hu
DOI:10.1021/ol300822a
日期:2012.5.4
A novel cascade reaction was developed for the synthesis of diverse members of a series of benzofuro[3,2-d]pyrimidine derivatives. The process utilizes readily prepared 3-chlorochromenones and various commercially available amidines and their analogues as starting materials. This tandem reaction is promoted by using a simple copper(I) reagent and involves a chemoselective Michael addition–heterocy
开发了一种新颖的级联反应,用于合成一系列苯并呋喃[3,2- d ]嘧啶衍生物的不同成员。该方法利用容易制备的3-氯色酮和各种市售的am及其类似物作为起始原料。这种串联反应是通过使用简单的铜(I)试剂促进的,涉及化学选择性迈克尔加成-杂环化-分子内环化序列。