A fluorine‐containing tetrasubstituted stereogenic center is a highly valued structural feature in medicinal chemistry. Herein, we describe the direct coupling of racemic α‐fluoronitriles and aldehydes promoted by a chiral CuI/Barton's base catalytic system, delivering α‐tetrasubstituted α‐fluoro‐β‐hydroxynitriles with satisfactory stereoselection. The stereochemical course was positively biased by
含
氟四取代的立体异构中心是药物
化学中极有价值的结构特征。本文中,我们描述了由手性Cu I / Barton碱催化体系促进的外消旋α-
氟腈和醛的直接偶联,可提供具有令人满意的立体选择的α-四取代α-
氟代-β-羟基腈。立体
化学过程被不对称非手性
硫脲作为Cu I的补充
配体的正偏见,这大大提高了立体选择性。芳族和脂族醛均被实施以提供具有脂族和芳族尾部的致密和立体选择性官能化的手性结构单元。