双水杨醛类缩乙二胺席夫碱的合成及光谱性能  

Synthesis and Spectral Properties of Bis-(substituted salicylaldehyde)ethylenediimine Schiff-bases

作　　者：张英菊[1] 王辉[1] 张红兵[1] 李建明[1] 吕小兵[1] 

机构地区：[1]大连理工大学精细化工国家重点实验室,大连116012

出　　处：《染料与染色》2005年第5期38-40,18,共4页Dyestuffs and Coloration

摘　　要：以水杨醛为原料,通过硝化或溴化反应合成了3,5-二硝基水杨醛(p.m5 7℃～59℃),5-溴水杨醛((m.p104℃～105℃),3-硝基水杨醛(m.p124℃～127℃),和3-溴-5-硝基水杨醛(m.p148℃～149℃)收率分别为76.0%、81.8%、63.0%和80.5%用水杨醛及其衍生物同乙二胺反应制备出11种双水杨醛缩乙二胺席夫碱.采用1H-NMR对合成的系列席夫碱进行了表征,通过紫外光谱测定席夫碱中苯环上不同取代基对紫外吸收波长的影响.3,5-Dinitro-salicylaldehyde（m.p. 57℃-59 ℃）,5-bromo-salicylaldehyde（m.p. 104 ℃- 105 ℃ ）, 3-nitro-5 -bromo-salicylaldehyde （m.p. 124 ℃- 127 ℃ ） and 3 -bromo-5 -nitro-salicylaldehyde （m.p. 148 ℃ - 149 ℃） were synthesized from salicylaldehyde via either nitration or bromination. The yields were 76.0%, 81.8%, 63.0% and 80.5% respectively. Eleven schiff-bases were prepared via condensation of ethylenediamine with salicylaldehyde derivatives. The structures of these schiff-bases were characterized by ^1H-NMR. The relationships between the substituted groups on the rings and their （ λmax） were investigated by UV-Visible Spectra.

关 键 词：水杨醛 乙二胺 席夫碱 紫外光谱 

分 类 号：TQ224.1[化学工程—有机化工]