Patent ID: 6248896
Filing Date: 2001-06-19
Classification: C07D

Abstract:
A process for the preparation of a dithiazolyl-(2,2')-disulfide of the general formula ##STR5##whereinR and R.sup.1 may be the same or different and each represents hydrogen, halogen, nitro, hydroxyl or optionally substituted C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alkoxyl, C.sub.6 -C.sub.12 cycloalkyl, C.sub.1 -C.sub.12 aryl or jointly form the residue ##STR6##whereinR.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the same meaning as R and R.sup.1, consisting essentially of the step of oxidizing a substituted 2-mercaptothiazole with oxygen or an oxygen-containing gas in the presence of a solvent wherein said solvent is not water, and a tertiary amine and also an organic iron compound wherein said organic iron compound is iron hemiporphyrazine.