A Novel Synthesis of <i>β</i>-Sulfinyl- and <i>β</i>-Sulfonyl-Hydroxamic Acids via CsF-Mediated Ring Opening of Substituted <i>β</i>-Lactones
作者:Gérard Rossé、Fernand Gerber、Jean-Luc Specklin、Christian Hubschwerlen
DOI:10.1055/s-2001-12311
日期:——
The ring-opening reaction of 3-substituted β-lactones with thiols was achieved using CsF in DMF as promoter. The resulting β-sulfanyl-carboxylic acid intermediates were coupled to hydroxylamine-Wang resin and the sulfur atom was selectively oxidized to afford β-sulfinyl- and β-sulfonyl-hydroxamic acid libraries.
以
DMF 中的 CsF 为
促进剂,实现了 3-取代δ-内酯与
硫醇的开环反应。生成的δ-
硫酰基
羧酸中间体与
羟胺-王
树脂偶联,
硫原子被选择性氧化,得到δ-
硫酰基和δ-磺酰基羟
肟酸库。