Dicarboalkoxy dioxolane derivatives
US5144048A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1990 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Dec 12, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23G2220/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides compounds which upon thermolyis, hydrolysis or both, release an odorant molecule. They find utility, for example, in tobacco, in tobacco paper, and as additives to food, beverages or gum. These compounds are dicarboalkoxy dioxolane derivatives having the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are, independently, --CO.sub.2 R.sup.3 wherein R.sup.3 is --H.sub.3 or lower alkyl, provided that in at least one of R.sup.1 and R.sup.2, R.sub.4 is lower alkyl; wherein Z is a direct bond, or --CH.dbd.C(R.sup.4)--; where R.sup.4 is an alkyl group; and Y is, when Z is a direct bond, ##STR2## where R.sup.5 is lower alkyl; and Y, when Z is --CH.dbd.C(R.sup.4)--, ##STR3## where R.sup.6 is H, lower alkyl or OR.sup.7, where R.sup.7 is H or lower alkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.