Lai Mia
2015
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Journal
Flavour Fragrance Cosmetics
Abstract
Using 3-pyridine carboxylic acid as raw material,3-pyridine carbonyl chloride was obtained by acylation reaction. The leucine ethyl ester hydrochloride was synthesiszed from leucine and ethanol by acylation reaction. At room temperature,N-( 3-formyl pyridine)-leucine ethyl ester was prepared with 3-pyridine carbonyl chloride and leucine ethyl ester hydrochloride as raw materials,triethylamine as absorb acid agent. The structure of target product was confirmed by1 H NMR,13 C NMR,IR and HRMS spectra. The applications of this ester in cigarette flavoring were studied as well. Thirty-nine kinds of pyrolysis products were identified,they were almost aroma components. The sensory evaluation showed that the new compound could improve the cigarette taste and flavor,reduce smoking irritation.