Facile One-Pot Access to α-Diazo-β-ketosulfones from Sulfonyl Chlorides and α-Haloketones
作者:Mikhail Krasavin、Dmitry Dar’in、Grigory Kantin、Olga Bakulina
DOI:10.1055/s-0040-1707525
日期:2020.8
approach to the preparation of α-diazo-β-ketosulfones from sulfonyl chlorides is described. It involves the conversion of the sulfonyl chloride to sodium sulfinate, alkylation of the latter with α-haloketones followed by diazo transfer using the ‘sulfonyl-azide-free’ (‘SAFE’) protocol in aqueous medium. The simple and expedient method relies on readily available starting materials and provides facile
描述了一种从磺酰氯制备α-重氮-β-酮砜的方便的一锅法。它包括将磺酰氯转化为亚磺酸钠,将后者用α-卤代烷烷基化,然后在水性介质中使用“无磺酰叠氮化物”('SAFE')方案进行重氮转移。简单方便的方法依赖于容易获得的起始原料,并且可以轻松获得用于有机合成的各种有价值的重氮试剂。