Method for producing a 3-(substituted-oxy)-4-pyridazinol derivative
US8552182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2010 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Oct 19, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D237/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for producing a 3-(substituted oxy)-4-pyridazinol compound represented by the following general formula (I):comprising reacting a compound represented by the following general formula (III):with a compound represented by the following general formula (IV):MO—R2 (IV).The compound represented by the general formula (I) can be reacted with a compound represented by the following general formula (VI):to provide a compound of general formula (V):Each of the groups in the formulas is defined. The compounds of general formulas (I) and (V) can be obtained in a high yield and with high selectivity at a low cost, and therefore various functional and active substances can be advantageously synthesized using the compounds as a medicine, an agricultural chemical, a functional material, or an intermediate thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.