Improvement of the synthesis of isothiocyanates

Abstract

Isothiocyanates were prepared from the reactions of phenyl chlorothionoformate and various primary amines vis one-step or two-step process without additional base. The one-step process is good at highly active amines, while two-step approach is suitable for all kinds of amines. This method has many merits such as environment-friendly, easily available raw materials, low toxicity and convenient operation, which has a good application prospect in industry.