Stereospecific 1,4‐Metallate Shift Enables Stereoconvergent Synthesis of Ketoximes
作者:Kai Yang、Feng Zhang、Tongchang Fang、Guan Zhang、Qiuling Song
DOI:10.1002/anie.201906057
日期:2019.9.16
Reported herein is a stereospecific 1,4-metallate rearrangement for single-geometry ketoxime synthesis from oxime chlorides and arylboronic acids. This strategy exhibits broad substrate scope with excellent stereoselectivity under mild reaction conditions. In comparison with the conventional approaches, each configuration of unsymmetric diaryl oximes, as well as the thermodynamically less stable Z isomer
本文报道了用于由肟氯化物和芳基硼酸合成单几何型酮肟的立体有规的1,4-金属盐重排。该策略在温和的反应条件下具有宽泛的底物范围和出色的立体选择性。与常规方法相比,可以选择性地并且排他地获得不对称二芳基肟的每种构型以及芳基烷基酮肟的热力学上较不稳定的Z异构体。一类未开发的分子,不对称二芳基肟和芳基烷基肟的Z异构体的反应性使得能够有效地获得具有单一构型的相应异喹啉,异喹啉N-氧化物和酰胺。