(Quinolinyl and quinoxalinyloxy)phenoxy alkenols and their use as post emergent herbicides
US4900354A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1986 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Aug 29, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D241/44
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds of the class comprising (quinolinyl and quinoxalinyloxy)phenoxy) alkenols, e.g., 4-(4-((6-chloro-2-quinolinyl)oxy)phenoxy)-2-penten-1-ol; and a method of preparation, comprising reacting an appropriately substituted quinoline or quinoxaline, e.g., 2,6-dichloroquinoline, with a phenolic substituted pentenol, e.g., 4-(4-hydroxyphenoxy)-2-penten-1-ol, in the presence of a base and organic solvent under an inert atmosphere with or without heat, and then recovering the product. These compounds are useful as intermediates for preparing various known herbicidal compounds and are useful in their own right as post-emergent herbicides for controlling grassy weeds in the presence of corn plants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.