The Preparation of Tiglaldehyde [(E)-2-Methyl-2-Butenal]

Abstract
Substituted α,β-unsaturated aldehydes are important synthetic building blocks; and their unambiguous preparation has been the subject of much recent study2. Most of the methods proposed, even though ingenious and leading to high yields, hardly lend themselves to economic bulk preparation of such compounds, particularly those of low molecular weight.