摘要
在微波促进无溶剂条件下,由N-甲基-2-甲基吡啶碘盐与取代芳香醛在哌啶作用下合成了一系列2-取代的吡啶半菁染料,产物结构由元素分析,1HNMR,MS,IR,UV得到确认.该方法操作简便,收率高.在此基础上,对N-甲基-2-(p-N,N-二甲氨基-苯乙烯基)吡啶半菁染料的光谱性质进行了理论计算.
2-Substituted pyridinium hemicyanine dyes were synthesized in a fast, efficient and high yield by the condensation of 1,2-dimethyl pyridine salts with aromatic aldehydes in the present of piperidine under solvent-free microwave irradiation. The products were identified by ^1H NMR, MS, IR, UV-vis spectra and elemental analysis. Furthermore, spectrum property of N-methyl-2-（p-dimethylamino-styryl）pyridine hemi- cyanine dye was calculated.
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
2006年第10期1389-1393,共5页
Chinese Journal of Organic Chemistry
基金
陕西省自然科学基金(No.2004B23)
陕西省教委科研专项基金(No.02JK060)资助项目.
关键词
微波辐射
2-取代吡啶半菁染料
2-甲基吡啶
芳香醛
microwave irradiation
2-substituted pyridinium hemicyanine dye
2-methyl pyridine
aromatic aldehyde
