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6-Acetyl-2,3,4,5-tetrahydropyridine, is an aroma compound and flavor that gives baked goods such as white bread, popcorn, and tortillas their typical smell, together with its structural homolog 2-acetyl-1-pyrroline.
6-Acetyl-2,3,4,5-tetrahydropyridine and 2-acetyl-1-pyrroline are usually formed by Maillard reactions during heating of food. Both compounds have odor thresholds below 0.06 ng/l.
Structure and properties
6-Acetyl-2,3,4,5-tetrahydropyridine is a substituted tetrahydropyridine and a cyclic imine as well as a ketone. The compound exists in a chemical equilibrium with its tautomer 6-acetyl-1,2,3,4-tetrahydropyridine that differs only by the position of the double bond in the tetrahydropyridine ring:
References
6-Acetyl-2,3,4,5-tetrahydropyridine Wikipedia(Text) CC BY-SA