作者:Xiancai Ding、Jianming Wen、Jianqiang Wang、Jun Yu、Jing-Hua Li
DOI:10.3184/174751915x14304098020793
日期:2015.5
synthesis of vinyl sulfoxides, using sulfinyl chlorides and olefins as starting materials and DBU as an HCl scavenger, has been developed. Vinyl sulfoxides were obtained from the ZnCl2 catalysed addition of sulfinyl chlorides to olefins followed by the elimination with DBU. However, the direct reaction of sulfinyl chlorides with olefins in the presence of DBU, usually leads to generation of vinyl sulfones
已经开发了一种合成乙烯基亚砜的通用方法,使用亚磺酰氯和烯烃作为起始原料,DBU 作为 HCl 清除剂。乙烯基亚砜是通过 ZnCl2 催化将亚磺酰氯加成到烯烃中,然后用 DBU 消除而获得的。然而,在 DBU 存在下,亚磺酰氯与烯烃的直接反应通常会导致生成乙烯基砜。由 DBU 介导的亚磺酰基歧化产生的磺酰基自由基与烯烃发生加成消除反应,得到乙烯基砜。