Improved Procedure to Aryl Thiocyanates: A New Synthetic Application of Dry Arenediazonium o-Benzenedisulfonimides

M Barbero, I Degani, N Diulgheroff, S Dughera…

Index: Barbero; Degani; Diulgheroff; Dughera; Fochi Synthesis, 2001 , # 4 p. 585 - 590

Full Text: HTML

Citation Number: 12

Abstract

Abstract: Aryl thiocyanates 3 (22 examples) were easily prepared by reaction of dry arenediazonium o-benzenedisulfonimides 1 and sodium thiocyanate (2) in anhydrous acetonitrile at room temperature (20-25 C) in the presence of copper powder (Procedure A) and at 50 C or room temperature without the metal catalyst (Procedure B). The yields were from very good to excellent in Procedure A (average yield= 83%), and from modest to ...