Reactions between 4-hydroxy-6-methyl-2-pyrone and aldehydes both in the absence and the presence of added thiols

P. de March, M. Moreno-Mañas,R. Pi,A. Trius

JOURNAL OF HETEROCYCLIC CHEMISTRY（1982）

引用 56|浏览4

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摘要

Aldehydes react with 4-hydroxy-6-methyl-2-pyrone, 2, under Knoevenagel conditions to afford very elec-trophilic intermediates, which can be trapped by more 2 or thiols to give dilactones 3 or monolactones 4.

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