Staudinger Condensation for the Preparation of Thiohydantoins
作者:Arnaud Tatibouët、Sandrine Gosling、Chahrazade El Amri
DOI:10.1055/s-0033-1338592
日期:——
iminophosphoranes (Staudinger reaction) and condensation with carbon disulfide to form nonisolated isothiocyanates; then, condensation with α-amino esters to provide new N-3-substituted 2-thiohydantoins. An efficient one-pot, two-step sequence starting from azide derivatives is described: first, formation of iminophosphoranes (Staudinger reaction) and condensation with carbon disulfide to form nonisolated