Electrochemical Semipinacol Rearrangements of Allylic Alcohols: Construction of All-Carbon Quaternary Stereocenters
作者:Jun-Chen Kang、Yong-Qiang Tu、Jia-Wei Dong、Chao Chen、Jia Zhou、Tong-Mei Ding、Jian-Tao Zai、Zhi-Min Chen、Shu-Yu Zhang
DOI:10.1021/acs.orglett.9b00263
日期:2019.4.19
sulfonylation/semipinacol rearrangements of allylic alcohols were developed using cheap and stable RSO2Na (R = CF3, Ph) as reagents. Various β-trifluoromethyl and sulfonated ketones were obtained in moderate to excellent yields. This strategy provides a facile, direct, and complementary approach to construct all-carbon quaternary stereocenters. In addition, the reaction has the advantages of being chemical oxidant-free
使用便宜且稳定的RSO 2 Na(R = CF 3,Ph)作为试剂,开发了烯丙醇的电化学三氟甲基化和磺酰化/西美萘那醇重排的第一个实例。以中等至优异的产率获得了各种β-三氟甲基和磺化酮。该策略提供了一种简便,直接和互补的方法来构建全碳四元立体中心。另外,该反应具有无化学氧化剂和无金属的优点,并具有安全和温和的反应条件。