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.
式(I)中的2-芳基-4-
异噁唑啉-3-1衍
生物是
银卤片照相材料中正作用化合物的中间体,其中R1代表取代或未取代的碳数为1到6的烷基或碳数为6到24的取代或未取代的芳基;R2、R3和R4相同或不同,每个具有最多20个碳原子,且分别代表氢、取代或未取代的烷氧基、取代或未取代的芳氧基、取代或未取代的酰基、取代或未取代的烷氧羰基、取代或未取代的芳氧羰基、卤素、硝基、取代或未取代的
氨基甲酰基、取代或未取代的磺酰胺基、取代或未取代的磺酰基、
氰基或三
氟甲基,但至少其中R2和R3之一是
氰基、取代或未取代的磺酰基、三
氟甲基或硝基。