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Catalyst

Acetaldehyde condenses with formaldehyde (Aldol reaction) to give, after the elimination of water, acrolein.

Industrial Organic Chemistry, 3rd. Ed. K. Weissermel, H.-J. Arpe, VCH (1997)

Reaction defined as:
Addition: Nucleophilic
Condensation
Elimination
Industrial Process: Organic
Name Reaction