CPC C07C 29/15 (2013.01) [B01J 31/04 (2013.01); C07C 45/45 (2013.01)] | 16 Claims |
1. A process for preparing an alkenal, comprising: 1) self-condensing an aliphatic aldehyde having at least 3 carbon atoms, in the presence of a catalyst comprising a dialkylammonium carboxylate salt, to produce the corresponding alkenal; and 2) washing said alkenal with dilute aqueous alkanoic acid to remove residual nitrogen from the product; wherein the residual nitrogen is about 1% or less nitrogen by CHN analysis.
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