【摘要】 本文以α 新戊酰基 2 氯 5 [3 (2,4 二特戊基苯氧基)丁酰胺基]乙酰苯胺为母体,以2,5 二巯基 1,3,4 噻二唑为吸附基团,分别以1 甲酰基 2 (4 氨基)苯肼,1 乙酰基 2 (4 氨基)苯肼和1 三氟乙酰基 2 (4氨基)苯肼为增强基团合成了3种DAR黄成色剂.并通过IR,1HNMR,MS确证了它们的结构.更多还原

【Abstract】 DAR couplers(Development Accelerator Releasing Coupler) are contained in the light-sensitive silver halide photographic material.They are represented by the general formula C_p-L-A in which "C_p" represents a coupler residue."A" represents a development accelerating functional group and "L" represents a divalent linking group.In this paper,three DAR yellow couplers are synthesized:"C_p" is α-pivalyl-2-chlor-5-acetanilide;"L" is 2,5-dimercapto-1,3,4-thiociazol;"A" are 1-formyl-2-(4-aminophenyl)hydrazide,1-acetyl1-2-(4-aminophenyl)hydrazide and 1-trifluoroacety1-2-(4-aminophenyl)hydrazide.The structures of couplers are identified by IR,~1HNMR,and MS.更多还原