SYNTHETIC CONTROL BY INTERNAL HYDROGEN BONDING. THE INTRAMOLECULAR DIELS–ALDER REACTION OF NITROFURAN AND α,β-UNSATURATED CARBOXAMIDES

Abstract
The intramolecular Diels–Alder reaction of N-(5-nitrofurfuryl)-N-(2-hydroxyphenyl) α,β-unsaturated carboxamides gives good yields of cycloadducts when internal hydrogen bonding is present.

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