Process for producing 6-phenoxypicolinic aldehydes
US4393213A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1981 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Oct 26, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/647
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing 6-phenoxypicolinic aldehydes, which comprises reacting a 2-halogeno-6-phenoxypyridine represented by the general formula I: ##STR1## where X is a halogen atom, Y is independently an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms substituted by a halogen atom, an alkylthio group of 1 to 4 carbon atoms, a trifluoromethyl group, a fluorine atom or a chlorine atom, Z is a hydrogen atom or a fluorine atom, and n is an integer of 0 to 2, with magnesium metal, and then with a formylating reagent. These compounds are used as intermediates for the synthesis of insecticides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.