Redox-Neutral Access to Sultams from 2-Nitrochalcones and Sulfur with Complete Atom Economy
作者:Thanh Binh Nguyen、Pascal Retailleau
DOI:10.1021/acs.orglett.7b01766
日期:2017.7.21
A catalyst-free, redox-neutral, and completely atom-economical synthesis of sultams by simply heating 2-nitrochalcones with elemental sulfur in 3-picoline or N-methylmorpholine is described. The S–N, C–S, and S═O bonds of the sulfonamide are efficiently formed between the nitrogen atom of the 2-nitro group and the α-carbon of the chalcones and elemental sulfur with the migration of two oxygen atoms
描述了通过简单地在2-甲基吡啶或N-甲基吗啉中加热2-硝基查耳酮与元素硫的无催化剂,氧化还原中性且完全原子经济的合成方法。磺酰胺的S–N,C–S和S═O键在2-硝基基团的氮原子与查耳酮的α-碳和元素硫之间有效地形成,同时两个氧原子从2-硝基为硫原子。