N,N-Diisopropyl-2-benzothiazolesulfenamide → HCID 53779465, compound

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Reaction Steps

133 parts of N,N-diisopropyl-2-benzothiazolesulphenamide are suspended in 400 parts of water in an apparatus provided with a stirrer and a thermometer. 20 parts of sodium carbonate and 20 parts of sodium bicarbonate are added. 400 parts by volume of a sodium hypochlorite solution titrating 180 g. per liter of NaClO are gradually introduced in a period of 1 hour, with good stirring, at a temperature of 25°-28° C. The mixture is stirred for a further 10 hours at 20°-25° C. The solid is filtered off, washed with water until neutral and dried in vacuo. 119 parts of 2-N,N-diisopropylbenzo-thiazole-sulphinamide are obtained, that is a yield of 84.5%. Melting point (uncorrected): 79.5° C. After recrystallising from ethyl alcohol, a product of melting point (uncorrected) 80.5° C. is obtained.

Provenance & Evidence