Enantio- and Diastereoselective Iodocyclopropanation of Allylic Alcohols by Using a Substituted Zinc Carbenoid
作者:Louis-Philippe B. Beaulieu、Lucie E. Zimmer、André B. Charette
DOI:10.1002/chem.200902228
日期:2009.11.9
(Zinc)redible! 2,3‐Disubstituted and 2,3‐trisubstituted iodocyclopropanes can be accessed in enantiomerically enriched form by using the enantioselective Simmons–Smith iodocyclopropanation of allylic alcohols in the presence of the stoichiometric dioxaborolane chiral ligand. These iodocyclopropanes serve as versatile chiral building blocks towards highly functionalized 1,2,3‐trisubstituted cyclopropanes
(锌)可信赖!在化学计量的二氧杂硼烷基手性配体存在下,通过使用烯丙醇的对映选择性Simmons-Smith碘环丙烷化,可以以对映体富集的形式获得2,3-二取代和2,3-三取代的碘代环丙烷。这些碘代环丙烷可作为多功能的手性构件,用于高度官能化的1,2,3-三取代环丙烷(请参见方案)。