Reactions of β-dimethylaminoacrolein aminal and 3-dimethylamino-1,1,3-trimethoxypropane with 3-(dicyanomethylidene)indan-1-one and 1,3-bis(dicyanomethylidene)indane
作者:Zh. A. Krasnaya、E. O. Tret’yakova、S. G. Zlotin
DOI:10.1007/s11172-007-0355-y
日期:2007.11
Reactions of 3-(dicyanomethylidene)indan-1-one and 1,3-bis(dicyanomethylidene)indane with β-dimethylaminoacrolein aminal, 3-dimethylamino-1,1,3-trimethoxypropane, DMF acetal, and ethyl orthoformate were studied. The reaction of 3-(dicyanomethylidene)indan-1-one with 3-dimethylamino-1,1,3-trimethoxypropane gave the 1,3-bis(1-dicyanomethylidene-3-oxoindane)trimethineoxanine salt in high yield, which was used to obtain a number of novel cation-anionic polymethine dyes.
研究了 3-(二氰亚甲基)茚-1-酮和 1,3-双(二氰亚甲基)茚与 β-二甲氨基丙烯醛、3-二甲氨基-1,1,3-三甲氧基丙烷、DMF 乙缩醛和原甲酸乙酯的反应。3-(二氰亚甲基)茚-1-酮与 3-二甲基氨基-1,1,3-三甲氧基丙烷反应生成了 1,3-双(1-二氰亚甲基-3-氧代茚烷)三甲氧基茚盐,产量很高。