Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-06-12
1991-11-26
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549469, 549 49, C17D33372, C17D30778
Patent
active
050683594
ABSTRACT:
Novel benzothiophene and benzofuran derivatives of the general formula I ##STR1## wherein X is oxygen or sulfur, R.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 haloalkyl, R.sub.2 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 haloalkyl, R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or halogen and R is a 4-cyano-3-pyrrole radical of which the N atom carries one of the following substituents:
REFERENCES:
patent: 4259338 (1981-03-01), Paioni et al.
patent: 4737516 (1988-04-01), Stutz
patent: 4829067 (1989-05-01), Jijima
Ricci et al, "Thiophene Derivatives . . . ", CA 66:115525e (1967).
JP59104374-1 (Derwent Abstract).
Ackermann Peter
Huxley Alica
Kunz Walter
Sutter Marius
Chang Celia
Ciba-Geigy Corporation
Dohmann George R.
Ivy C. Warren
McC. Roberts Edward
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