Smoking compositions containing a 2,5-diacylpyrazine flavorant a

Details Smoking compositions containing a 2,5-diacylpyrazine flavorant a Smoking compositions containing a 2,5-diacylpyrazine flavorant a

1986-08-11

1991-05-21

Millin, V.

Tobacco

Product or device having identifiable constituent to flavor...

Organic compound

131276, A24B 312, A24B 1538

Patent

active

050172352

ABSTRACT:
In one of its embodiments this invention provides smoking compositions which contain a novel unsymmetrical 2,5-diacylpyrazine flavorant additive as illustrated by 1-[5-(1-propanoyl)-2-pyrazinyl]-2-methyl-1-propanone: ##STR1## Under normal cigarette smoking conditions, the 2,5-diacylpyrazine additive volatilizes and enhances the flavor and aroma of the mainstream and sidestream smoke.
In another embodiment this invention provides novel unsymmetrical 2,5-diacylpyrazine compounds corresponding to the formula: ##STR2## where R is hydrogen or an alkyl radical containing between about 1-4 carbon atoms; and R.sup.1 and R.sup.2 are alkyl radicals containing between about 1-10 carbon atoms, and R.sup.1 and R.sup.2 are different alkyl groups.

REFERENCES:
patent: 3711482 (1973-01-01), Mookherjee et al.
Journal of the Chemical Society, Perkin II, 1972, pp. 2035-2038.
Journal of Heterocyclic Chemistry, vol. 23, No. 2, Mar./Apr. 1987, pp. 497-500.
Bulletin of the Chemical Society of Japan, vol. 49, Oct. 1976, pp. 2805-2810.

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