Production for producing 3-cyano-4-phenyl indoles and intermedia

Details Production for producing 3-cyano-4-phenyl indoles and intermedia Production for producing 3-cyano-4-phenyl indoles and intermedia

1985-10-07

1987-11-10

Berch, Mark L.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

548560, 548561, 548562, 568308, 568319, 568663, 514427, A01N 4336, C07D20733, C07D20734, C07B 4308

Patent

active

047058013

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.

REFERENCES:
patent: 4198502 (1980-04-01), Tarzia
patent: 4212806 (1980-07-01), Tarzia
Tetraheiron Letters No. 52, pp. 5337-5340, (1972)--Van Leusen et al.
Synthesis (1976) pp. 281-304--Patterson.
Chem. Ber. 94, p. 676--Wittig et al. (1960).
Helvetica Chimica Acta--vol. 65, Fasc 6 (1982), No. 165--Berney.
Helvetica Chimica Acta--vol. 65, Fasc. 1 (1982) No. 42 Lang et al.

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