Production for producing 3-cyano-4-phenyl indoles and intermediates
US4705801A · kind A · utility
52Cited by
2References
4Claims
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Key dates
| Filing date | Oct 7, 1985 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | Oct 7, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C49/255
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is described a process for producing fungicidally active 4-phenylpyrrole derivatives of the formula I ##STR1## wherein R is halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -haloalkyl, and n is 0, 1 or 2, which process comprises reacting a 3-trifluoromethyl-4-phenylpyrrole of the formula II ##STR2## wherein R.sub.n is as defined under the formula I, and R.sub.1 is hydrogen or an acyl group, at elevated temperature and elevated pressure, with ammonia. Important intermediates and the production thereof are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.