2-aryl-4-isoxazolin-3-one derivatives

Details 2-aryl-4-isoxazolin-3-one derivatives 2-aryl-4-isoxazolin-3-one derivatives

1992-01-13

1993-06-22

Bernhardt, Emily

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

430380, 544137, 5483661, 5483691, 564 87, 564442, 568 29, 568 44, C07D26112

Patent

active

052217507

ABSTRACT:
2-aryl-4-isoxazolin-3-1-derivatives of formula (I), useful as intermediates for positive working compounds in silver halide photographic materials ##STR1## wherein R.sup.1 represents a substituted or unsubstituted alkyl having from 1 to 6 carbon atoms or a substituted or unsubstituted aryl having from 6 to 24 carbon atoms; and R.sup.2, R.sup.3, and R.sup.4, are the same or different, each having up to 20 carbon atoms and each represents hydrogen, a substituted or unsubstituted alkoxy, a substituted or unsubstituted aryloxy, a substituted or unsubstituted acyl, a substituted or unsubstituted alkoxycarbonyl, a substituted or unsubstituted aryloxycarbonyl, halogen, nitro, a substituted or unsubstituted carbamoyl, a substituted or unsubstituted sulfamoyl, a substituted or unsubstituted sulfonyl, cyano, or trifluoromethyl, with the proviso that at least one of said R.sup.2 and R.sup.3 is cyano, a substituted or unsubstituted sulfonyl, trifluoromethyl, or nitro.

REFERENCES:
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patent: 4692182 (1987-09-01), Chang
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patent: 4886736 (1989-12-01), Nakamura et al.
Nakamura et al., Chemical Abstracts, vol. 110, No. 95215 (1989) (Abstract for JP 63/192761 (Aug. 10, 1988).
Nakamura et al. Chemical Abstracts, vol. 110, No. 135226 (1989) (Abstract for JP 63/192760 (Aug. 10, 1988).
Abstract for JP 46/31856 (Sep. 17, 1971).
Kishida et al., Chemical Abstracts, vol. 75, No. 140825v (1971).
Hirai et al., Chemical Abstracts, vol. 109, No. 83528 (1988) for JP 62/244044, Oct. 24, 1987.
Nakamura eta l., Chemical Abstracts, vol. 109, No. 180480 (1988) for JP 62/245256 Oct. 26, 1987.

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