Abstract:
The present invention relates to a new class of compound, α-decalones with a 2,3,8a-trimethyl substitution, which are valuable perfuming ingredients of the woody type. The present invention concerns also the use of said compounds in the perfumery industry as well as the compositions or articles containing said compounds.
Abstract:
The present invention relates to use of a compound of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein the dotted lines represent a single or double bond, and at least one of said dotted lines represents a double bond; n represents simultaneously 0, in which case the oxygen atom is bounded to the cyclanic carbon atom by a double bond, or 1, in which case the oxygen atom is bounded to the cyclanic carbon atom by a single bond, each R represents a hydrogen atom or a methyl group; R 1 represents a hydrogen atom or a methyl or ethyl group; and R 2 represents a hydrogen atom or a methyl or ethyl group; and the groups R, R 1 and R 2 have in total, i.e. all together account for 1 to 4 carbon atoms; as perfuming ingredient, for instance to impart odor notes of the woody type together with balsamic/spicy and/or musky notes.
Abstract:
The present invention relates to a new class of compounds, α-decalones or decalols with a 6,7,8a-trimethyl substitution, and their use in perfumery to confer odor notes of the citrus (e.g. grapefruit) type.
Abstract:
The present invention relates to β-decalone derivatives (I) svhich can impart useful odor notes of the pheromone/costus type. The present invention doricerns the use of said compounds in the perfumery industry as well as the compositions or articles containing said compounds. (I) in the form of any one of its isomers or of a mixture thereof, and wherein the dotted lines indicate the presence of an optionally double bond, R 1 represents a methyl group or a hydrogen atom, a represents 0 or 1 and R 2 represents a hydrogen atom or a C 1 -C 3 alkyl group.
Abstract:
A method for separating a reaction product and an imide catalyst of the general formula (1) or a degenerate thereof from a reaction mixture obtained by a reaction with the imide catalyst, which comprises extracting the reaction mixture with two organic solvents which are separable from each other to thereby distribute the reaction product and the catalyst or the degenerate to the two organic solvent layers respectively: (1) [wherein R and R are each hydrogen, alkyl, or the like, or alternatively R and R may be united to form a double bond, or an aromatic or non-aromatic ring; and X is oxygen or hydroxyl]. According to this method, an imide catalyst such as N-hydroxyphthalimide and/or a degenerate thereof and a reaction product can be efficiently separated by easy operation from a reaction mixture obtained by using the imide catalyst and a substrate of hydrocarbon or the like.