Direct and metal-free arylsulfonylation of alkynes with sulfonylhydrazides for the construction of 3-sulfonated coumarins
作者:Wei Wei、Jiangwei Wen、Daoshan Yang、Mengyuan Guo、Yingying Wang、Jinmao You、Hua Wang
DOI:10.1039/c4cc08117j
日期:——
A novel and metal-free procedure has been developed for the construction of sulfonated coumarins via direct arylsulfonylation of alkynes with sulfonylhydrazides.
已开发出一种新颖且无金属的程序,用于通过烷基磺酰肼对炔烃进行直接芳基磺酰化,从而构建磺化香豆素。
Visible-light mediated 3-component synthesis of sulfonylated coumarins from sulfur dioxide
novel 3-componentsynthesis of sulfonylated coumarins from diaryliodonium salts, arylpropynoates and sulfurdioxide is reported. The reaction proceeds under mild conditions at room temperature in the absence of any catalysts. This transformation is solely driven by visible light and opens a new opportunity for the sustainable synthesis of sulfones via the direct incorporation of sulfurdioxide.