Benzopyrans

Details Benzopyrans Benzopyrans

1982-09-24

1984-05-01

Bond, Robert T.

Chemical apparatus and process disinfecting, deodorizing, preser

Physical type apparatus

Means separating or dissolving a material constituent

424274, 424278, 546 16, 546196, 548407, 548525, 549345, 549399, A61K 3135, A61K 3133, C07D40504, C07D31168

Patent

active

044461135

ABSTRACT:
Compounds of formula (I): ##STR1## wherein: one of R.sub.1 and R.sub.2 is hydrogen and the other is selected from the class of alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy, alkylhydroxymethyl, nitro, cyano, chloro, trifluoromethyl, alkylsulphinyl, alkylsulphonyl, alkoxysulphinyl, alkoxysulphonyl, alkylcarbonylamino, alkoxycarbonylamino, or aminosulphinyl, aminosulphonyl or aminocarbonyl, the amino moiety being optionally substituted by one or two alkyl groups, or alkylsulphinylamino, alkylsulphonylamino, alkoxysulphinylamino or alkoxysulphonylamino, or ethylenyl terminally substituted by alkylcarbonyl, nitro or cyano or --C(alkyl)NOH or --C(alkyl)NNH.sub.2, the alkyl groups or alkyl moieties of alkyl-containing groups having from 1 to 6 carbon atoms;

REFERENCES:
patent: 4366163 (1982-12-01), Evans et al.

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