Enantioselective Synthesis of <i>trans</i>-Aryl- and -Heteroaryl-Substituted Cyclopropylboronates by Copper(I)-Catalyzed Reactions of Allylic Phosphates with a Diboron Derivative
作者:Chongmin Zhong、Shun Kunii、Yuki Kosaka、Masaya Sawamura、Hajime Ito
DOI:10.1021/ja103783p
日期:2010.8.25
A new asymmetric route for the synthesis of trans-2-aryl- and -heteroaryl-substituted cyclopropylboronates has been developed. (Z)-3-arylallylic phosphates were converted to the opticallyactive products with high yield and diastereo- and enantioselectivitythrough a copper(I)-catalyzed reaction with a diboron derivative. Under mild reaction conditions, the reaction affords the arylcyclopropane products