Process for purification of crude 2-mercaptobenzothiazole

Details Process for purification of crude 2-mercaptobenzothiazole Process for purification of crude 2-mercaptobenzothiazole

1976-06-30

1977-12-06

Gallagher, Richard J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D27772

Patent

active

040616460

ABSTRACT:
Crude 2-mercaptobenzothiazole is purified by preparing a crude, liquid 2-mercaptobenzothiazole by reacting aniline, carbon disulfide and sulfur under elevated pressure at high temperatures; extracting said crude, liquid 2-mercaptobenzothiazole in the molten state with cold carbon disulfide by liquid-liquid extraction thereby forming a slurry of 2-mercaptobenzothiazole crystals; and filtering and drying said crystals.

REFERENCES:
patent: 2090233 (1937-08-01), Roberts
patent: 3031073 (1962-04-01), Szlatinay

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