压敏染料结晶紫内酯的合成研究  

Synthesis of pressure-sensitive dye crystal violet lactone

作　　者：黄玉平[1] 

机构地区：[1]天津理工大学化学化工学院,天津300384

出　　处：《天津理工大学学报》2012年第6期60-62,共3页Journal of Tianjin University of Technology

摘　　要：采用N,N-二甲基苯胺为原料经Vilsmeier反应合成得到对二甲氨基苯甲醛,探讨了反应温度、反应时间及原料配比对产品收率的影响.当反应温度为75℃,反应时间为4.5 h,N,N-二甲基苯胺与三氯氧磷配比为1∶1.3(mol/mol)时,收率为87.8%.以对二甲氨基苯甲醛、N,N-二甲基苯胺、间二甲氨基苯甲酸为原料,经缩合、氧化得到结晶紫内酯,收率41.5%.4-Dimethylaminobenzaldehyde has been synthesized from N, N-Dimethylaniline by Vilsmeier reaction, the affect of reaction time, reaction temperature and the ratio of reactant are investigated. In the condition of that reaction time is 4.5 h, reaction temperature is 75 ℃ and the ratio of N, N-Dimethylaniline to POC13 is 1 ： 3 the yield of 4-Dimethylaminobenzalde- hyde is 87.8%. Crystal violet lactone has been synthesized by condensation of 4-Dimethylaminobenzaldehyde, N,N-Dimeth- ylaniline and 3-Dimethylaminobenzoic acid and further by oxidation of the above condensation reaction product. The yield is 41.5%.

关 键 词：对二甲氨基苯甲醛 结晶紫内酯 压敏染料 

分 类 号：O621.3[理学—有机化学]