Fluorotrifluoromethyl Group Installation: Tetrasubstituted Tertiary Stereocenters Containing C–F and C–CF<sub>3</sub> Bonds via Copper-Mediated Allylic Substitution
作者:Yingling Zhang、Nils Raugh、Ulrich Koert
DOI:10.1021/acs.orglett.3c02032
日期:2023.8.4
obtained from secondary 3-fluoro-3-trifluoromethyl allylic phosphates by a copper(I)-mediated allylic substitution reaction using Grignard reagents. The reaction features a broad substrate scope, high γ-regioselectivity, and excellent (E)-stereoselectivity. Two examples of chirality transfer from enantiopure secondary fluorine-substituted allylic phosphates to the corresponding scalemic products indicate
含有氟三氟甲基 (FTF) 基序的四取代三级中心是通过使用格氏试剂的铜 (I) 介导的烯丙基取代反应从仲 3-氟-3-三氟甲基烯丙基磷酸酯获得的。该反应具有广泛的底物范围、高γ-区域选择性和优异的( E )-立体选择性。从对映体纯仲氟取代的烯丙基磷酸酯到相应的鳞片产物的手性转移的两个例子表明了安装 FTF 立体中心的方法的立体选择性潜力。