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Synthesis of substituted ethenylpyrazines and dialkylpyridines and their sensory properties
Author(s) -
Lambrecht S.,
Kaulen J.
Publication year - 1997
Publication title -
flavour and fragrance journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 70
eISSN - 1099-1026
pISSN - 0882-5734
DOI - 10.1002/(sici)1099-1026(199711/12)12:6<439::aid-ffj718>3.0.co;2-b
Subject(s) - chemistry , pyrazine , organic chemistry , stereochemistry
Ethenylpyrazines and substituted pentylpyridines are potent flavouring 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 John Wiley & Sons, Ltd.