Method for preparation of benzyl mercaptan
US4740623A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1987 |
| Grant date | Apr 26, 1988 |
| Priority date | — |
| Expiry date | Jan 30, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C321/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for the preparation of benzyl mercaptan is disclosed which comprises reacting a benzyl halide of the formula ##STR1## wherein X is chlorine or bromine, with an alkali metal hydrosulfide salt, at a temperature and for a sufficient period of time to cause formation of the benzyl mercaptan, said reaction being conducted under a hydrogen sulfide atmosphere at a temperature of about 50.degree. C. until approximately 90% of the starting material is converted to the benzyl mercaptan, then increasing the temperature to about 80.degree. C. for the balance of the reaction, the initial concentration of said hydrosulfide salt in solution being between about 5% and about 30% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.