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.
A compound of formula (I) wherein R1 and R2 are independently selected from hydrogen, methyl, ethyl, propyl and isopropyl; or R and R 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.
CYCLOPROPANE COMPOUND
申请人:Kao Corporation
公开号:US20190055179A1
公开(公告)日:2019-02-21
Provided are a compound and a fragrance composition that are excellent in harmony with various other fragrance materials and can be blended to impart a natural and fresh floral feeling. The present invention provides a cyclopropane compound represented by Formula (I) and a fragrance composition containing a cyclopropane compound represented by Formula (I):
where R
1
is a methyl group and R
2
is a methyl group, or R
1
is a hydrogen atom and R
2
is an ethyl group.