1,2-Diaza-1,3-dienes bearing electron-withdrawing groups react with electron-poor alkenes by means of an uncommon aza- Diels-Alder reaction furnishing novel tetrahydropyridazines with high regio- and stereoselectivity. Conducting these cycloadditions in solvent free conditions under thermal conditions the reaction times are significantly reduced, the yields are improved and the stereoselectivity remained unchanged.
Novel Tetrahydropyridazines by Unusual Aza-Diels-Alder Reaction of Electron-poor 1,2-Diaza-1,3-dienes with Electron-poor Alkenes Under Solvent Free Conditions
D'AURIA, Maurizio;RACIOPPI, Rocco
2013-01-01
Abstract
1,2-Diaza-1,3-dienes bearing electron-withdrawing groups react with electron-poor alkenes by means of an uncommon aza- Diels-Alder reaction furnishing novel tetrahydropyridazines with high regio- and stereoselectivity. Conducting these cycloadditions in solvent free conditions under thermal conditions the reaction times are significantly reduced, the yields are improved and the stereoselectivity remained unchanged.File in questo prodotto:
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