Synthesis of Cyclic Sulfonamides via Intramolecular Copper-Catalyzed Reaction of Unsaturated Iminoiodinanes
作者:Philippe Dauban、Robert H. Dodd
DOI:10.1021/ol000130c
日期:2000.7.1
Catalytic copper(I) or (II) triflate then provided intramolecular nitrene delivery leading to aziridine formation except in one case where a rare copper-catalyzed C-H insertion was observed. The aziridines could be opened by various nucleophiles (methanol, thiophenol, allylmagnesium bromide, benzylamine) to give the corresponding substituted cyclic sulfonamides.
用碘代二苯碘乙酸酯和氢氧化钾的甲醇溶液处理烯烃伯磺酰胺,得到中间体亚氨基碘烷。然后,在一种观察到罕见的铜催化CH插入的情况下,催化三氟甲磺酸铜(I)或三氟甲磺酸铜(II)会导致分子内氮的递送,导致形成氮丙啶。氮丙啶可以被各种亲核试剂(甲醇,硫酚,烯丙基溴化镁,苄胺)打开,得到相应的取代的环磺酰胺。