摘要
以乙醇为溶剂,在70℃下用强酸性阳离子交换树脂Amberlyst15催化芳香醛与环己酮缩二乙醇或环戊酮缩二乙醇反应2～6h后,以产率80%～92%得到α,α′-双亚苄基环烷酮类化合物。产物结构经熔点,IR和1HNMR确证。产物后处理简单,没有醛或缩酮的自缩合产物生成,是一种环境友好的绿色合成方法。
Abstract A series of α,α′-bis（substituted benzylidene）cycloalkanones were synthesized by condensation reaction of aromatic aldehydes with cyclohexanone ketal or cyclopentanone ketal using strong- acid cation exchange resin Amberlyst 15 as catalyst in ethanol media. The reactions were completed during 2 - 6 h with 80% ～ 92% yields. The structure of the products was characterized by IR, ^1H NMR, MS and the melting point. The products were convenient to work up. This process is simple, efficient, environmentally benign and without anv self-condensation.
出处
《化学通报》
CAS
CSCD
北大核心
2007年第10期801-804,共4页
Chemistry
