1-(Alkyl/Arylthiocarbamoyl)benzotriazoles as Stable Isothiocyanate Equivalents: Synthesis of Di- and Trisubstituted Thioureas
作者:Alan R. Katritzky、Stephane Ledoux、Rachel M. Witek、Satheesh K. Nair
DOI:10.1021/jo035680d
日期:2004.4.1
1-(Alkyl/arylthiocarbamoyl)benzotriazoles 4a−i were synthesized in yields of 91−99% from bis(benzotriazolyl)methanethione (3). Reagents 4a−g were then used as isothiocyanate equivalents for the efficient synthesis of 10 secondary and 14 tertiary thioureas in high-yielding, convenient processes.
从双(苯并三唑基)甲烷硫酮(3)合成1-(烷基/芳基硫代氨基甲酰基)苯并三唑4a - i的产率为91-99%。然后将试剂4a - g用作异硫氰酸酯等效物,以高产率,方便的方法有效合成10个仲和14个叔硫脲。