Pyridine is use as base as well as solvent, can i replace with other solvent and base?

16 July 2023 1 3K Report

which is suitable for the condensation of melonic acid and aromatic aldehyde

Do you mean malonic acid? In any case, I don't know of a base-catalyzed condensation reaction between a carboxylic acid and an aldehyde. But if there is one, a in inert solvent with a Lewis base should be OK.

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