作者:Pan, Mengni、Shen, Yue、Li, Yang、Shen, Chaoren、Li, Wanfang
DOI:10.1021/acs.joc.4c00591
日期:——
The nucleophilic ring-opening of aziridine derivatives provides an important synthetic tool for the preparation of various β-functionalized amines. Amines as nucleophiles are employed to prepare synthetically useful 1,2-diamines in the presence of various catalysts or activators. Herein, the B2(OH)4-mediated reductive ring-opening transformation of N-tosyl aziridines by nitroarenes was developed. This
氮丙啶衍生物的亲核开环为制备各种β-官能化胺提供了重要的合成工具。胺作为亲核试剂用于在各种催化剂或活化剂存在下制备合成有用的1,2-二胺。在此,开发了B 2 (OH) 4介导的硝基芳烃对N-甲苯磺酰基氮丙啶的还原开环转化。该水性方案采用硝基芳烃作为廉价且容易获得的氨基源,并在无外部催化剂的条件下进行。对照实验和DFT计算表明硝基芳烃通过N-芳基硼酰胺酸( E )原位还原为芳基胺,并通过所得芳基胺对N-甲苯磺酰基氮丙啶进行S N 1型开环,具有高区域选择性。