Benzo(d)thiazol-2-amine → Methyl 4-(benzothiazol-2-yl)allophanate

Participants

Reaction Steps

Three and one half parts by weight of methoxycarbonyl isocyanate was added gradually with stirring to a solution at room temperature of 41/2 parts by weight of 2-aminobenzothiazole dissolved in 150 parts by weight of methylene chloride. After stirring the reaction mixture at room temperature for 12 hours, the product was isolated by filtration giving a 40% yield of essentially pure methyl 4-(benzothiazol-2-yl)allophanate having a melting point of 338°-340° C with decomposition.

Provenance & Evidence