I have tried simple methods- those are ehtanol reflux and acetic acid as a catalyst and in acetic acid reflux. The reaction is not going.
Dear Suresh : what exactly you want to do? In Imine preparation you need as catalyst just glacial acetic acid.
For inspiration see:
https://www.researchgate.net/publication/265959505_Synergism_of_Metal_and_Organocatalysis_in_Condensation_Reactions_of_Aromatic_Aldehydes_with_Anilines_Affording_Imines_Effect_of_Catalysts_on_the_Base_of_a_Supported_Cerium%28III%29_and_Proline
Article Synergism of Metal and Organocatalysis in Condensation React...
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