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US 5,084,440 AGranted
Acetals and ketals of oxo-tetralins and oxo-indanes
AssigneeGivaudan SA
InventorsJosianne Baudin, Alain-Pierre Bonenfant, Hans U. Gonzenbach
Life of this patent
Estimating the term…
Abstract
Novel odorants, namely acetals and ketals of alkyl-substituted oxo-tetralins and oxo-indanes, are described.
Claims38
A compound of the formula ##STR51## wherein:
- R.sup.1 and R.sup.2 are selected from the group consisting of alkyl groups of one to four carbon atoms and alkenyl groups of two to four carbon atoms, or R.sup.1 in combination with R.sup.2 represents an alkylene group of two to four carbon atoms wherein the substituents on said alkylene group are selected from the group consisting of
- (i) hydrogen,
- (ii) an alkyl group having one to four carbon atoms,
- (iii) an alkenyl group having two to four carbon atoms.
- (iv) an alkanol having one to four carbon atoms, and,
- (v) an alkenol having one to four carbon atoms;
- R.sup.3 is selected from the group consisting of hydrogen and methyl;
- R.sup.4 is selected from the group consisting of hydrogen, methyl, ethyl, propyl and butyl;
- R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are selected from the group consisting of hydrogen, methyl, ethyl, normal-propyl and iso-propyl;
- X is selected from the group consisting of ##STR52## provided that (i) the total number of carbon atoms in R.sup.1 plus R.sup.2 is not greater than six;
- (ii) the total number of carbon atoms in the combination of groups R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is not greater than eleven, and,
- (iii) the total number of carbon atoms in the combination of groups R.sup.5, R.sup.6, R.sup.7 and R.sup.8 is not greater six.
9 more elements
An odorant composition comprising an olfactorily effective amount of a compound of the formula ##STR60## wherein:
- R.sup.1 and R.sup.2 are selected from the group consisting of alkyl groups of one to four carbon atoms and alkenyl groups of two to four carbon atoms, or R.sup.1 in combination with R.sup.2 represents an alkylene group of two to four carbon atoms wherein the substituents on said alkylene group are selected from the group consisting of
- (i) hydrogen,
- (ii) an alkyl group having one to four carbon atoms,
- (iii) an alkenyl group having two to four carbon atoms
- (iv) an alkanol having one to four carbon atoms, and,
- (v) an alkenol having one to four carbon atoms:
- R.sup.3 is selected from the group consisting of hydrogen and methyl;
- R.sup.4 is selected from the group consisting of hydrogen, methyl, ethyl, propyl and butyl;
- R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are selected from the group consisting of hydrogen methyl, ethyl normal-propyl and iso-propyl;
- X is selected from the group consisting of ##STR61## provided that (i) the total number of carbon atoms in R.sup.1 plus R.sup.2 is not greater than six;
- (ii) the total number of carbon atoms in the combination of groups R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is not greater than eleven, and,
- (iii) the total number of carbon atoms in the combination of groups R.sup.5, R.sup.6, R.sup.7 and R.sup.8 is not greater six.
- and at least one other olfactory agent.
10 more elements
A method for improving the odor of an odorant composition which comprises adding thereto an olfactorily effective amount of a compound of the formula ##STR69## wherein:
- R.sup.1 and R.sup.2 are selected from the group consisting of alkyl groups of one to four carbon atoms and alkenyl groups of two to four carbon atoms, or R.sup.1 in combination with R.sup.2 represents an alkylene group of two to four carbon atoms wherein the substituents on said alkylene group are selected from the group consisting of
- (i) hydrogen.
- (ii) an alkyl group having one to four carbon atoms,
- (iii) an alkenyl group having two to four carbon atoms.
- (iv) an alkanol having one to four carbon atoms, and,
- (v) an alkenol having one to four carbon atoms;
- R.sup.3 is selected from the group consisting of hydrogen and methyl;
- R.sup.4 is selected from the group consisting of hydrogen, methyl, ethyl, propyl and butyl;
- R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are selected from the group consisting of hydrogen, methyl, ethyl, normal-propyl and iso-propyl;
- X is selected from the group consisting of ##STR70## provided that (i) the total number of carbon atoms in R.sup.1 plus R.sup.2 is not greater than six;
- (ii) the total number of carbon atoms in the combination of groups R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is not greater than eleven, and,
- (iii) the total number of carbon atoms in the
- combination of groups R.sup.5, R.sup.6, R.sup.7 and R.sup.8 is not greater six.
10 more elements
Dependencies are inferred from the claim text.