申请人:Fuji Photo Film Co., Ltd.
公开号:US05221750A1
公开(公告)日:1993-06-22
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.
公式(I)的2-芳基-4-异噁唑啉-3-1衍生物,可用作银卤化物感光材料中阳性工作化合物的中间体。其中,R.sup.1代表具有1至6个碳原子的取代或未取代烷基,或具有6至24个碳原子的取代或未取代芳基;而R.sup.2、R.sup.3和R.sup.4相同或不同,每个最多有20个碳原子,且每个代表氢、取代或未取代烷氧基、取代或未取代芳氧基、取代或未取代酰基、取代或未取代烷氧羰基、取代或未取代芳氧羰基、卤素、硝基、取代或未取代氨基甲酰基、取代或未取代磺胺基、取代或未取代磺酰基、氰基或三氟甲基,但须至少其中一个R.sup.2和R.sup.3为氰基、取代或未取代磺酰基、三氟甲基或硝基。