Cs
<sub>2</sub>
CO
<sub>3</sub>
‐Mediated Vicinal Thiosulfonylation of 1,1‐Dibromo‐1‐Alkenes with Thiosulfonates: An Expedient Synthesis of (
<i>E</i>
)‐1,2‐Thiosulfonylethenes
作者:Raju Jannapu Reddy、Arram Haritha Kumari、Jangam Jagadesh Kumar、Jagadeesh Babu Nanubolu
DOI:10.1002/adsc.201801620
日期:2019.4
A new and highly efficient vicinal thiosulfonylation of 1,1‐dibromo‐1‐alkenes with thiosulfonates in the presence of cesium carbonate has been developed. The metal‐free diheterofunctionalization is an operationally simple to access a wide range of (E)‐1,2‐thiosulfonylethenes (α‐aryl‐β‐thioarylvinyl sulfones) in moderate to high yields with high levels of stereoselectivities. Further, scalable reactions
在碳酸铯存在下,开发了一种新的高效的1,1-二溴-1-烯烃与硫代磺酸盐的邻位硫磺酰化反应。无金属的二杂官能化操作简单易行,可以中等到高收率获得高范围的立体选择性,从而获得广泛的(E)-1,2-硫磺磺酮(α-芳基-β-硫代芳基乙烯基砜)。此外,已经证明了该转化的可扩展反应,从而说明了其效率和实用性。