One-Pot Reductive Sulfenylation and Thiocyanation of Carbonyl Compounds in Ionic Liquid Media
作者:Lal Dhar S. Yadav、Garima、Ritu Kapoor
DOI:10.1080/00397910903531854
日期:2010.12.21
The first example of an efficient one-pot reductive sulfenylation and thiocyanation of carbonyl compounds in environmentally benign ionic liquid (IL) media is reported. The process involves reduction of carbonyl compounds with NaBH4 in the IL [bmim]BF4 followed by I2-catalyzed reaction of the resulting alcohols with aromatic / aliphatic thiols or ammonium thiocyanate in the same vessel to afford sulfides
报道了在环境良性离子液体 (IL) 介质中羰基化合物的有效单锅还原性磺基化和硫氰化的第一个例子。该过程包括在 IL [bmim]BF4 中用 NaBH4 还原羰基化合物,然后在同一容器中将所得醇与芳香族/脂肪族硫醇或硫氰酸铵进行 I2 催化反应,分别以极好的收率提供硫化物或硫氰酸盐( 78–93%)。值得注意的是,该协议排除了在单独的步骤中制备和分离中间醇的必要性,因为它们是原位形成的,并且所使用的 IL 可以轻松回收以供进一步使用,而不会降低效率。