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

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

1991-01-23

1991-12-10

Shah, Mukund J.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

430380, 514380, C07D26112, A61K 3142

Patent

active

050719947

ABSTRACT:
2-aryl-4-halomethyl-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; 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, trifluoromethyl, or carboxyl, 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; and X represents fluorine, chlorine, bromine or iodine.

REFERENCES:
patent: 3119832 (1964-01-01), Matter et al.
patent: 4490462 (1984-12-01), Kawaguchi et al.
patent: 4783396 (1988-11-01), Nakamura et al.
patent: 4886736 (1989-12-01), Nakamura et al.
patent: 4950764 (1990-08-01), Nakamura et al.
Organic Chemical Nomenclature by Phillip Fresenius (Halsted Press), p. 27 (1989).
Nakamura et al., Chemical Abstracts, vol. 109, No. 83227 (1988) (Abstract for JP 293243, 12/19/87).
Hirai et al., Chemical Abstracts, vol. 109, No. 83528 (1988) (Abstract for JP 244044, 10/24/87).
Nakamura et al., Chemical Abstracts, vol. 109, No. 180480 (1980) (Abstract for JP 180480, 10/26/87).

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