Abstract
AbstractOne‐pot method for the preparation of well‐ordered periodic mesoporous ethylenesilica functionalized in‐situ with sulfonic groups (pr‐SO3H‐PMO) was deployed successfully. The sulfonic groups have been used as a Brønsted acid to catalyze the carbon‐carbon coupling reaction of α‐electron‐withdrawing group (EWG) ketene dithioacetal derivatives and benzhydrol. Meanwhile, this series of materials exhibit excellent catalytic performance in the C−C coupling reaction and pr‐SO3H‐PMO(0.39) possesses highly efficient catalytic performance among the prepared materials, over which the conversion of ketene dithioacetals achieved 98.3% and the yield of the coupling products reached 93.4%. In addition, evidence is presented that the catalytic activity of pr‐SO3H‐PMO(0.39) material has been recycled up to five times without a significant reduction.
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