芳香醛电合成的研究 Ⅷ茴香醛合成反应的动力学

STUDIES ON THE ELECTROSYNTHESIS OF AROMATIC ALDEHYDES Ⅷ.KINETIC STUDY ON SYNTHESIS REACTION OF ANISALDEHYDE

测定了 3～ 4 0℃范围内不同温度下Ce4+氧化对甲氧基甲苯 (MT)制茴香醛 (AA)反应的速率常数 ,并确定了该反应的速率方程为d〔AA〕/dt =k〔MT〕〔Ce4+〕 ,表观活化能为 3 1 .4± 1 .3kJ .mol-1。

Rate constants of reaction for synthesis of anisaldehyde through oxidation of p methoxytoluene(MT)with Ce 4+ at different temperatures(3～4℃)were measured,The rate equation,d[MT]/dt=k[MT][Ce 4+ ],and apparent activation energy,31.4+1.3kJ.mol -1 ,for this reaction were found.