Process for the production of sulfenamides
US4461897A · kind A · utility
4Cited by
9References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 24, 1982 |
| Grant date | Jul 24, 1984 |
| Priority date | — |
| Expiry date | Sep 24, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D277/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Benzothiazole-2-sulfenamides are prepared by reacting a 2-mercaptobenzothiazole and a primary or secondary amine with oxygen in the presence of a catalyst, for example a metal phthalocyanine, in a reaction medium consisting of (i) a mixture of the amine and water in which the amount of water at the outset of the reaction is from 0.2 to 20% by weight of the mixture, or (ii) a mixture as defined in (i) diluted with an inert organic solvent miscible with the mixture, in a proportion of up to two parts by weight of the inert organic solvent per part by weight of the mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.