Leveraging the Micellar Effect: Gold-Catalyzed Dehydrative Cyclizations in Water at Room Temperature
作者:Stefan R. K. Minkler、Nicholas A. Isley、Daniel J. Lippincott、Norbert Krause、Bruce H. Lipshutz
DOI:10.1021/ol403402h
日期:2014.2.7
The first examples of gold-catalyzed cyclizations of diols and triols to the corresponding hetero- or spirocycles in an aqueous medium are presented. These reactions take place within nanomicelles, where the hydrophobic effect is operating, thereby driving the dehydrations, notwithstanding the surrounding water. By the addition of simple salts such as sodium chloride, reaction times and catalyst loadings
介绍了在水介质中金催化的二醇和三醇环化成相应杂环或螺环的第一个例子。这些反应发生在纳米胶束内,疏水作用在其中起作用,从而推动脱水,尽管周围有水。通过添加简单的盐,例如氯化钠,可以显着减少反应时间和催化剂负载。