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US 6,610,857 B2Granted
Process for the production of dithiazolyl disulfides
AssigneeBayer Aktiengesellschaft
InventorsWolfgang Wolber, Markus Oberthür
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Abstract
The invention relates to a process for the production of 2,2′-dithiazolyl disulfides by oxidation of 2-mercaptothiazoles with peroxidic compounds in an aqueous suspension in a specific pH range.
Claims6
Process for the production of 2,2′-dithiazolyl disulfides of the general formula
- wherein
- R and R1 can be the same or different and each denote hydrogen, halogen, nitro, hydroxyl or optionally substituted C1-C12 alkyl or alkoxyl or C6-C12 cycloalkyl or aryl or C1-C12 heteroaryl, or jointly form the residue
- wherein
- R2 to R5 have the same meaning as R and R1, comprising the step of oxidizing a corresponding substituted 2-mercaptothiazole with peroxidic compounds, wherein oxidation is performed in an aqueous suspension at a pH in the range of 6.5 to 8.0 and wherein the pH is within the range of 6.5 to 8.0 from beginning to end of the oxidation.
1 more element
Dependencies are inferred from the claim text.