Tetrahedron Letters p. 1457 - 1460 (1989)
Update date:2022-09-26
Topics:
Zoeller, Joseph R.
6-Substituted 2-acetonaphthones can be generated from para substituted benzaldehydes and acetylacetone (2,4-pentanedione) in three reactions consisting of condensing the benzaldehyde with acetylacetone, acetalizing the resultant 3-benzylidene 2,4-pentanedione (α-acetyl benzalacetones), with trimethyl orthoformate, pyrolyzing the acetal either in the vapor phase at 475 deg C or by heating in a high boiling solvent, such as 1-methylnaphthalene.
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