The preparation of acetylenedicarbaldehyde (but-2-ynedial)(2) and its electrophilic properties towards some dienes are reported; the usefulness of the two aldehyde groups in the adducts obtained is exemplified by a Wittig reaction and the synthesis of a pyridazine.
A. Gorgues and A. Le Coq, J. Chem. Soc., Chem. Commun., 1979, 767 DOI: 10.1039/C39790000767
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