A method for producing polymethine dyes comprising the steps of:
(a) reacting a 1,1-diaryl-2-metallo-ethene with an ω,ω,-diarylpolyalkene-aldehyde in an anhydrous solvent under an inert atmosphere; and
(b) neutralizing the reaction mixture from step (a) with an acid, thereby producing a polymethine dye.
一种生产聚甲基
染料的方法,包括以下步骤
(a) 在惰性气氛下,在无
水溶剂中使 1,1-二芳基-2-
金属-
乙烯与 ω,ω,-二芳基多烯醛反应;以及
(b) 用酸中和步骤(a)的反应混合物,从而生成聚甲基
染料。