| abstract |
The present invention refers to aryl beta diketones of the formula (I) n n n n n n n n n n n n wherein Y, R 1 , R 2 and R 3 have the meaning n n n R 1 is selected from the group consisting of hydrogen, C 1 -C 4 alkyl, hydroxyl, methoxy, CF 3 and F; n R 2 is selected from the group consisting of methyl and ethyl; n R 3 is selected from the group consisting of methyl and ethyl; and n Y is a bivalent residue selected from the group consisting of n —C(O)—; —CH 2 ═CH 2 —C(O)—; —CR I R II —C(O)—, wherein R I and R II are independently selected from hydrogen and methyl; and —CHR III —CHR IV —C(O)—, wherein R III and R IV are independently selected from hydrogen and methyl with the proviso, that R III ═R IV are hydrogen or either R III or R IV is methyl. The invention further refers to fragrance compositions and fragranced articles comprising them. |