Cu‐Catalyzed Chemoselective Preparation of 2‐(Pinacolato)boron‐Substituted Allylcopper Complexes and their In Situ Site‐, Diastereo‐, and Enantioselective Additions to Aldehydes and Ketones
作者:Fanke Meng、Hwanjong Jang、Byunghyuck Jung、Amir H. Hoveyda
DOI:10.1002/anie.201301018
日期:2013.5.3
Sustainable, efficient, selective: A three‐component, single‐vessel Cu‐catalyzed method for chemo‐, diastereo‐, and enantioselective conversion of B2(pin)2, monosubstituted allenes, and aldehydes or ketones to 2‐B(pin)‐substituted homoallylic alkoxides is described. Subsequent functionalization delivers valuable products in up to >98:2 d.r. and 97:3 e.r. (see scheme).
可持续、高效、选择性:一种三组分、单容器铜催化方法,用于 B 2 (pin) 2、单取代丙二烯和醛或酮向 2-B(pin) 的化学、非对映和对映选择性转化描述了-取代的高烯丙基醇盐。随后的功能化可提供高达 >98:2 dr 和 97:3 er 的有价值的产品(参见方案)。