Process for producing dialkyl phosphorochloridothionates
US4332747A · kind A · utility
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4References
9Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 17, 1980 |
| Grant date | Jun 1, 1982 |
| Priority date | — |
| Expiry date | Sep 17, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The process of producing a lower alkyl ester of phosphorochloridothioic acid by the chlorination of alkyl esters of dithiophosphoric acid in which the chlorine added after the addition of from 0.63 to 0.86 moles of chlorine per mole of phosphorodithioic acid is diluted with an inert gas. The disclosed process improves product yields, and purity, and advantageously provides for simple HCl recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.