Journal of Organic Chemistry p. 2230 - 2233 (1981)
Update date:2022-08-05
Topics:
Chmielewski, Marek
Jurczak, Janusz
The adducts from thermal and/or high-pressure Diels-Alder reactions between 1-methoxybuta-1,3-diene and carbonyl compounds (glyoxylates, aldehydes) are utilized as the starting materials for the syntheses of naturally occurring δ-lactones.Total syntheses of massoilactone, 6-phenyl-2-pyrone, and 2-methoxy-6-undecyl-5,6-dihydro-2H-pyran are described.A general approach to these syntheses is presented.
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