一种新型Schiff碱化合物的合成与表征

Peparation and Characterization of A Novel Schiffe Base Type Complex

以4-甲基-2-环己基苯酚为主要原料,通过甲酰化反应合成了3-环己基-5-甲基水杨醛;甲酸催化下,该取代水杨醛与苯胺通过Schiff碱缩合合成了3-环己基-5-甲基水杨醛缩苯胺。通过1HNMR,1CNMR等手段表征了该新schiff碱化合物,并研究了工艺条件对合成反应的影响。结果表明:需要及时脱除合成中生成的水分,并调节pH到3.5酸性条件下回流反应才能使所得产物纯度达到98%以上。

Treatment of a 4-methyl-2-cyclohexyl substituted phenol compound with para-formaldehyde produced 3-cyclohexyl -5-methyl salicylaldehyde compound. The compound reacted with aniline via Schiff base condensation in ethanol to afford the corresponding pheuoxyimine ligand Li, which were characterized by ^1H NMR and 13C NMR. The effects of technology conditions on the condensation reaction were examined in detail for obtaining complcx L; with purity quotient more than 98 %, it was necessary to reduce bypass water and adjust pH until to 3.5 under reflux of ethanol.