Silica gel promoted synthesis of N-sulfonylcyclothioureas in water
作者:Guo-Xiang Wan、Liang Xu、Xiao-Si Ma、Ning Ma
DOI:10.1016/j.tetlet.2011.09.075
日期:2011.11
N-Sulfonylcyclothioureas were synthesized from N-sulfonyldiamines and CS2 with moderate to good yields in silica gel-water system. Moreover, the silica gel can be recycled for at least three times.