Several 3-(3’-butenyl)-4-hydroxycoumarins were synthetized and oxidized with m-chloroperbenzoic acid. 3,4-Dihydro-2-hydroxymethyl-2H,5H-pyranol[2,3-b][1]benzopyran-5-ones were obtained through an intramolecular 6-Exo cyclization of intermediate epoxide.
Epoxidation of 3-(3'-butenyl)-4-hydroxycoumarins and intramolecular 6-exo cyclization to 3,4-dihydro-2-hydroxymethyl-2H,5H-pyrano[2,3-b][1]benzopyran-5-ones.
BRAVO, PIERFRANCESCO;RESNATI, GIUSEPPE;TICOZZI, CALIMERO;
1984-01-01
Abstract
Several 3-(3’-butenyl)-4-hydroxycoumarins were synthetized and oxidized with m-chloroperbenzoic acid. 3,4-Dihydro-2-hydroxymethyl-2H,5H-pyranol[2,3-b][1]benzopyran-5-ones were obtained through an intramolecular 6-Exo cyclization of intermediate epoxide.File in questo prodotto:
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