carbazoles, benzothiophenes and benzofurans are important motifs in the pharmaceutical industry. Herein we report a novel, regioselective method to introduce alkyl substituents into position ortho of nitro groups by the addition of a Grignard reagent followed by subsequent oxidation with DDQ.
取代的
吲哚,
咔唑,
苯并噻吩和
苯并呋喃是制药行业的重要主题。在本文中,我们报道了一种新颖的区域选择性方法,该方法通过添加
格氏试剂将烷基取代基引入硝基邻位,随后用
DDQ进行氧化。