分子筛固载氟化钾催化芳香醛与环酮的缩合反应

Synthesis of α,α'-Dibenzylidenecycloalkanones Catalyzed by KF Supported on Molecular Sieve

在回流甲醇条件下,使用分子筛固载氟化钾催化芳醛与环己酮或环戊酮的缩合,反应80～480min,获得56%～95%产率的α,α'-二取代苯叉环烷酮.

Claisen-Schmidt condensation of cyclopentanone or cyclohexanone with aromatic aldehydes catalyzed by potassium fluoride supported on molecular sieve resulted in 2,5-bis（substituted benzylidene）cyclopentanones or 2,6-bis（substituted benzylidene）cyclohexanones with 56%～95% yields respectively under refluxing methanol for 80～480 min.