Improved Procedures for the Preparation of Cycloalkyl-, Arylalkyl-, and Arylthioureas
作者:C. R. Rasmussen、F. J. Villani, Jr.、L. E. Weaner、B. E. Reynolds、A. R. Hood、L. R. Hecker、S. O. Nortey、A. Hanslin、M. J. Costanzo、E. T. Powell、A. J. Molinari
DOI:10.1055/s-1988-27605
日期:——
An improved procedure for the preparation of arylthioureas consists of the reaction of benzoyl isothiocyanate with anilines in acetone and debenzoylation of the resultant N-aryl-N′-benzoylthioureas with 5% aqueous sodium hydroxide. Bicycloalkylthioureas and N-(arylalkyl)thioureas (e.g., 9H-9-fluorenylthiourea) are directly prepared from the corresponding isothiocyanates and ammonia.