Odoriferous compounds, their use as odorants, composition of fragrance comprising the same, method of creation, intensification or modification of the composition of fragrance, and the method to improve, enhance or modify the product of fragrance.

摘要

A compound of formula (I) wherein R1 and R2 are independently selected from hydrogen, methyl, ethyl, propyl and isopropyl; or R1 and R2 together form a saturated or monounsaturated 5- or 6-membered hydrocarbon ring, as represented by the arcuate dotted line; R3 is selected from methyl and ethyl; R4 is selected from methyl, ethyl, propyl, isopropyl, cyclopropyl, butyl, isobutyl, cyclobutyl and cyclopentyl; R5 is selected from hydrogen and methyl, and the dotted line between positions 3 and 4 represents an optional double bond. The compounds have a musk odour and are useful in fine and functional fragrances.