Intermediates for the preparation of microficidal pyrroline derivatives and conversion of same to phytofungicidal pyrrole derivatives
US4778901A · kind A · utility
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8Claims
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Key dates
| Filing date | Jun 3, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Jun 3, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D207/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Intermediates for the production of microbicidal pyrrolines of the formula ##STR1## in which R is halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 14 C.sub.6 -haloalkyl, and n is 0, 1 or 2, and a method of converting the pyrrolines to phytofungicidal pyrroles by oxidation with bromine or oxygen. Catalysts are provided for the oxidation with oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.