Utilization of unsaturated esters as perfuming ingredients

Perfume compositions – Perfume compositions – Oxygen containing active ingredient

Reexamination Certificate

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C512S026000, C512S027000, C560S008000

Reexamination Certificate

active

07129206

ABSTRACT:
A compound of formulawherein the symbol R′ represents a linear or branched, unsaturated or saturated hydrocarbon group having from 1 to 5 carbon atoms; R1, R2, R3, R4and R5represent, independently of each other, a hydrogen atom, a methyl, an ethyl or a methoxy group; R6and R7represent, independently of each other, a hydrogen atom, a methyl, ethyl, n-propyl or iso-propyl group; and wherein R5and R6, when taken together with the carbon atoms to which they are bound, may form a six-membered ring, is useful as perfuming ingredient for the preparation of perfuming compositions and perfumed products, to which it imparts odor notes of the floral and indol type without coloring problems in the final product.

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