Organic Brønsted acid‐catalyzed cycloadditions ofo‐quinonemethides with 1,3‐dicarbonlys: Facile access to xanthenones and chromanones

Volume: 58, Issue: 10, Pages: 1971 - 1982
Published: Jun 21, 2021
Abstract
The in-situ generation of o-quinone methides and their inverse-electron-demand Diels–Alder reaction in the presence of pentacarboxycyclopentadiene—an organic Brønsted acid—has been reported. The synthesis of xanthenones and chromanones in good to excellent yields from the [4 + 2] cycloaddition of quinone methides with 1, 3-dicarbonyls and Meldrum's acid has been accomplished. The development of this method helps in generating a number of...
Paper Details
Title
Organic Brønsted acid‐catalyzed cycloadditions ofo‐quinonemethides with 1,3‐dicarbonlys: Facile access to xanthenones and chromanones
Published Date
Jun 21, 2021
Volume
58
Issue
10
Pages
1971 - 1982
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