申请人:Fuji Photo Film Co., Ltd.
公开号:US05071994A1
公开(公告)日:1991-12-10
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.
公式(I)中的2-芳基-4-卤代甲基-4-异噁唑啉-3-1衍生物,可用作银卤感光材料中正极化合物的中间体。
其中,R1代表取代或未取代的碳数为1至6的烷基或取代或未取代的碳数为6至24的芳基;R2、R3和R4相同或不同,每个具有多达20个碳原子,且每个代表氢、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、三氟甲基或羧基,但至少R2和R3中的一个是氰基、取代或未取代的磺酰基、三氟甲基或硝基;X代表氟、氯、溴或碘。