118938-07-1Relevant academic research and scientific papers
2-aryl-4-halomethyl-4-isoxazolin-3-one derivatives
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, (2008/06/13)
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 R1 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; R2, R3, and R4, 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 R2 and R3 is cyano, a substituted or unsubstituted sulfonyl, trifluoromethyl, or nitro; and X represents fluorine, chlorine, bromine or iodine.
