Development of Zn-ProPhenol-Catalyzed Asymmetric Alkyne Addition: Synthesis of Chiral Propargylic Alcohols
作者:Barry M. Trost、Mark J. Bartlett、Andrew H. Weiss、Axel Jacobi von Wangelin、Vincent S. Chan
DOI:10.1002/chem.201202085
日期:2012.12.14
The development of a general and practical zinc‐catalyzed enantioselective alkyne addition methodology is reported. The commercially available ProPhenol ligand (1) has facilitated the addition of a wide range of zinc alkynylides to aryl, aliphatic, and α,β‐unsaturated aldehydes in high yield and enantioselectivity. New insights into the mechanism of this reaction have resulted in a significant reduction
报告了一种通用且实用的锌催化对映选择性炔烃加成方法的开发。市售的 ProPhenol 配体 ( 1 ) 有助于以高产率和对映选择性将各种炔基锌添加到芳基、脂肪族和 α,β-不饱和醛中。对该反应机理的新见解导致试剂化学计量的显着减少,从而能够使用珍贵的炔烃并避免使用过量的二甲基锌。来自该反应的对映体富集的炔丙醇用作多功能合成中间体,并且能够有效合成多种复杂的天然产物。