Borate Zirconia Mediated Knoevenagel Condensation Reaction in Water

Journal of the Korean Chemical Society

Balaji R. Madje¹  Mohan K. Dongare¹  Murlidhar S. Shingare¹  Santosh S. Shindalkar¹  Rajkumar V. Hangarge¹  Pratap T. Patil¹ 

关键词: Knoevenagel Reaction;    B2O3/ZrO2;    3-Formyl Chromone;    Formyl Pyrazole;    Aromatic Aldehyde;    Water;    Heterogeneous Catalysis;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Knoevenagel condensation of 4-oxo-(4H)-1-benzopyran-3-carbaldehydes, 1,3-diphenyl-1H-pyrazol-4- carboxaldehyde and aromatic aldehyde has been carried out with 3-methyl-1-phenylpyrazolin-5-(4H)-one as condensing agent in moderate to good yields by using Borate Zirconia (B2O3/ZrO2) solid acid catalyst in water medium. In each conversion, the catalyst was successfully recovered and recycled without significant loss in yield and selectivity.

【 授权许可】

Unknown