Gamma-undecenolactone, method for the preparation and use thereof for cosmetics and in the form of food additives
The invention relates to a gamma-undecenolactone of formula (i), wherein a lactonic cycle can carry an unsaturation between carbon No. 2 and carbon No. 3 and is preferably saturated, RI is a possibly substituted C 7 alkenyl or alkynyl group having at least one unsaturation, and preferably RI is an CH 2 ═CH—CH 2 —CH 2 —CH 2 —CH 2 —CH 2 group, the gamma-undecenolactone contains an asymetric carbon in position 4 having (R) or (S) configuration. The biosynthesis of the gamma-undecenolactone and the use thereon for perfumery and for a food flavoring agent are also disclosed.
1. A gamma-undecenolactone corresponding to formula (I):
wherein each dashed line represents the position of a possible double bond.
2. The gamma-undecenolactone as claimed in claim 1 , wherein the configuration at carbon 4 is (R).
3. The gamma-undecenolactone as claimed in claim 1 , wherein the configuration at carbon 4 is (S).
4. The gamma-undecenolactone as claimed in claim 1 , wherein the lactone ring is saturated and R1 is a C 7 H 13 group.
5. A perfumery composition, comprising an undecenolactone as defined in claim 1 .
6. A food composition, comprising an undecenolactone as defined in claim 1 .
7. A food additive, comprising an undecenolactone as defined in claim 1 .