Process for preparing dialkyl phosphorochloridothioates
US4159289A · kind A · utility
6Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1978 |
| Grant date | Jun 26, 1979 |
| Priority date | — |
| Expiry date | Mar 2, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process for the preparation of O,O-dialkyl phosphorochloridothioates in which distillation to recover substantially pure product is carried out in presence of a solubilizing or suspending agent, for example, liquid hydrocarbons, particularly aromatics having at least 10 carbon atoms which have good sulfur solubility, higher boiling point than the product and are inexpensive; specifically, naphthalenes are useful.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.