Solvent-Free Methallylboration of Ketones Accelerated by tert-Alcohols
摘要:
A solvent- and metal-free process has been developed for the direct methallylboration of ketones employing the stable B-methallylborinane 1, which was accelerated by tertiary alcohols. In the presence of 2.0 equiv of readily available tertiary alcohols such as tert-amyl alcohol, the methallylation products were prepared at room temperature in excellent yields. The salient features of the described process include simple operation, high efficiency, and mild reaction conditions.
Solvent-Free Methallylboration of Ketones Accelerated by <i>tert</i>-Alcohols
作者:Yongda Zhang、Ning Li、Navneet Goyal、Guisheng Li、Heewon Lee、Bruce Z. Lu、Chris H. Senanayake
DOI:10.1021/jo4006574
日期:2013.6.7
A solvent- and metal-free process has been developed for the direct methallylboration of ketones employing the stable B-methallylborinane 1, which was accelerated by tertiary alcohols. In the presence of 2.0 equiv of readily available tertiary alcohols such as tert-amyl alcohol, the methallylation products were prepared at room temperature in excellent yields. The salient features of the described process include simple operation, high efficiency, and mild reaction conditions.