Smoking compositions containing a 2,5-diacylpyrazine flavorant additive
US5017235A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1986 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Aug 11, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24B15/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.