申请人:——
公开号:US20040133014A1
公开(公告)日:2004-07-08
A highly efficient one-pot procedure for 3-sulfenilation of indole 2-carboxylates is described. Treatment of thiols with N-chlorosuccinimide at −78° C. in CH
2
Cl
2
affords sulfenyl chlorides in situ that readily react with indole 2-carboxylates to give 3-thioindoles in high yields. This new method is milder, produces less waste, and is compatible with a wide range of thiol and indole functionality.
1
描述了一种高效的一锅法程序,用于对
吲哚2-
羧酸酯进行3-磺化。在
CH2Cl2中,将
硫醇与N-
氯琥珀
酰亚胺在-78°C条件下处理,生成现场磺基
氯化物,它们能够与
吲哚2-
羧酸酯迅速反应,产生高收率的3-
硫代
吲哚。这种新方法更温和,产生更少废物,并且与各种
硫醇和
吲哚官能团兼容。