A Mild Method for the Synthesis of Carbamate-Protected Guanidines Using the Burgess Reagent
作者:Toshikatsu Maki、Takayuki Tsuritani、Tatsuro Yasukata
DOI:10.1021/ol5002208
日期:2014.4.4
A simple method for the synthesis of carbamate-protected guanidines from primary amines is described. A variety of thioureas derived from primary amines and isothiocyanates react with the Burgess reagent to give the corresponding guanidines via either a stepwise or one-pot procedure. By tuning the carbamoyl units of isothiocyanates and the Burgess reagent, differentially N,N′-diprotected guanidines
描述了一种由伯胺合成氨基甲酸酯保护的胍的简单方法。衍生自伯胺和异硫氰酸酯的各种硫脲与Burgess试剂反应,通过逐步或一锅法得到相应的胍。通过调节异硫氰酸酯的氨基甲酰基单元和伯吉斯试剂,可以得到不同的N,N′-双保护的胍。产物的选择性脱保护得到N-单保护的胍。