Cinchona Alkaloid/Sulfinyl Chloride Combinations: Enantioselective Sulfinylating Agents of Alcohols
作者:Norio Shibata、Mitsuharu Matsunaga、Masaya Nakagawa、Takeo Fukuzumi、Shuichi Nakamura、Takeshi Toru
DOI:10.1021/ja0430189
日期:2005.2.1
We report a novel approach to asymmetric sulfinylation reactions based on a cinchona alkaloid/sulfinyl chloride combination that acts as the first asymmetric sulfinylating agents of achiral alcohols. Both enantiomers of arenesulfinates are obtained with up to 99% ee. The significantly high enantioselectivity observed in this case could be explained by dynamic kinetic resolution.
我们报告了一种基于金鸡纳生物碱/亚磺酰氯组合的不对称亚磺酰化反应的新方法,该组合是第一种非手性醇的不对称亚磺酰化剂。获得的芳烃亚磺酸盐的两种对映异构体均具有高达 99% 的 ee。在这种情况下观察到的显着高对映选择性可以通过动态动力学拆分来解释。