How is Methyl sulfamate (CAS: 55665-95-7) typically synthesized?

Methyl sulfamate is typically synthesized by the reaction of methyl isothiocyanate with sodium sulfamate. This process involves the formation of a salt intermediate, which is then converted to the final product. Commonly, this reaction is carried out in aqueous solution at room temperature. The reaction yield is about 85-90%, and the catalysts used are usually inorganic salts like sodium carbonate.