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Synthesis of substituted ethenylpyrazines and dialkylpyridines and their sensory properties

✍ Scribed by S. Lambrecht; J. Kaulen

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
117 KB
Volume
12
Category
Article
ISSN
0882-5734

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✦ Synopsis

Ethenylpyrazines and substituted pentylpyridines are potent ¯avouring materials. For a more detailed evaluation of their sensory properties, we synthesized 2-ethenyl-3-ethylpyrazine (1), 2,3-diethenyl-5-methylpyrazine (2), 2-prop-2-enylpyrazine (3), 5-ethenyl-2-methoxy-pyrazine (4), 3-ethenyl-2-ethoxypyrazine ( 5), 3-methyl-2-pentylpyridine ( 6), 5-methyl-2-pentylpyridine (7), 6-methyl-2-pentylpyridine (8) and 4-pentylpyridine ( 9). An expert panel evaluated these compounds as having intense green and herbal notes. # 1997

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