Cyclobutanedicarboxylic acid imides, and compositions for their use as phytopathogenic fungicides
US4361576A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1980 |
| Grant date | Nov 30, 1982 |
| Priority date | — |
| Expiry date | Oct 29, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/353
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cyclobutanecarboxylic acid imides of the formula I ##STR1## wherein one of R.sub.1 and R.sub.6 is hydrogen, methyl or ethyl, and the other is methyl or ethyl, R.sub.2 and R.sub.3 independently of one another are each hydrogen, fluorine or methyl, or R.sub.2 is acetoxy or chlorine while R.sub.3 is hydrogen, and wherein R.sub.4 is hydrogen, methyl or chlorine, and R.sub.5 is hydrogen or methyl, whereby R.sub.3 and R.sub.4 together can also form an additional bond in the four-membered ring, are suitable for combating various fungi and have a particularly excellent action against Botrytis. They can be produced in an especially advantageous manner by photochemical [2+2] cycloaddition of alkenes or alkines with for example appropriately substituted maleic acid-(3,5-dichlorophenyl)-imides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.