Process for the production of disulfides

US4990675A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Michael Sauerbier · Eslarn, DE
• Karl Nutzel
• Kurt Schilling · Schwetzingen, DE

Key dates

• Filing date: Apr 12, 1989
• Grant date: Feb 5, 1991
• Expiry date: Apr 12, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C319/24
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the production of diorganodisulfides by oxidation of meraptans in which the mercaptan is reacted with a halogen compound capable of releasing at least one halogen atom and taking up a hydrogen atom instead, the reaction being carried out at 0.degree. to 100.degree. C. in the presence of base and, optionally, a phase transfer catalyst.