【摘要】 以杂环化合物2-甲基苯并噻唑和3-羧甲基罗丹宁为原料,合成了一种新型的桥链含罗丹宁核的份菁光谱增感染料3-羧甲基-5-[3-羧甲基-5-（3-乙基-2-苯并噻唑乙叉）-4-氧代噻唑]-4-氧-2-硫代噻唑双三乙胺盐,收率大于70%,纯度大于99%。该染料为棕红色粉末,熔点204～205℃;最大吸收峰光谱λ_max=591 nm（甲醇）;作为增感染料在碘溴化银感光乳剂中的最大增感峰 S_max=640 nm。该染料用于激光影像片乳剂中增感性能稳定,效果明显,抗老化性能理想,尤其是胶片在显影加工后余色少。更多还原

【Abstract】 A sensitizing dye of merocyanine with rhodanine nucleus on the bridged chain,3-carboxym- ethyl-5-]-3-carboxymethyl-5-（3-ethyl-2-benzothiozoleethine）-4-oxythiozole-]-4-oxy-2-sulfurthiozole bistriethyleneamine was synthesized by using the heterocyclic compounds of 2-methyl benzothiazole and 3-carboxymethyl rhodanine as raw material with the yield above 70% and purity above 99%.The sensitizing dye synthesized is brown red powder with m.p.of 204-205℃.The maximium absorption value in visible spectrum,max,is 591 nm in methanol and S_maxis 640 nm in AgBr-AgI emulsion.The sensitizing dye has the advantage of steady sensitizing performance,pronounced effect,perfect anti- aging properties when used in the laser imaging film.Especially the residual color is scare after pro- cessing.It can greatly improve the quality of the laser imaging film.更多还原