摘要:
The invention relates to compounds of the general formula in which R1 to R7 are, independently, H, methyl or ethyl, R8+R9 together form methylene (—CH2—) or a single bond, or R1+R2 together form —(CH2)n—, with n being 3 or 4, or R3+R5 or R5+R7 represent methylene or a single bond; and the presence of at least one cyclopropane ring in the molecule is compulsory and the side chain can be saturated or contains one double bond in position &agr;,&bgr; or &bgr;,&ggr;, a process for the manufacture of these compounds, compounds used to perform the process and the use of these compounds as an odorant or as an ingredient of an odorant composition.
摘要:
The invention is concerned with odorant compositions which contain macrocycles, namely 15- to 17-membered compounds of the formula: wherein the dotted line signifies an optional additional bond, X and Y stand for methylene or C2-12-polymethylene, optionally substituted with an additional methyl group, and A signifies hydrogen or methyl in the case of the unsaturated compounds and methyl in the case of the saturated compounds, with the proviso that the unsaturated compounds are present to more than 80% in the cis form when A signifies hydrogen and are present to more than 50% in the cis form when A signifies methyl, with the exception of Z-oxacyclopentadec-6-en-2-one (15-membered ring), Z-oxacycloheptadec-8-en-2-one (17-membered ring), and Z-oxacycloheptadec-11-en-2-one (17-membered ring), a process for the manufacture of the compounds of formula I and the use of the compounds of formula I as odorants.
摘要:
The invention relates to agents preventing (the formation of) human malodor. In particular, the invention relates to the use of several classes of compounds which can act as such agents in cosmetic products, such as deodorants and antiperspirants. These compounds are normally odorless or nearly so, but upon contacting the skin as for example, in skin care compositions or in personal care compositions, they prevent malodor.The compounds under consideration are compounds of the formula:X--(Z).sub.n --CO--NH--CH--(COO--Y)--CH.sub.2 CH.sub.2 CONH.sub.2I.
摘要:
Spirocyclic compounds of the general formula (I) are provided which are powerful odorants. Compositions which include these compounds are also provided. They can be used, for instance, in perfumery.
摘要:
A compound of the formula ##STR1## wherein the dotted line signifies an optional bond, as racemates or individual enantiomers, odorant compositions containing the same, and a process for the manufacture of the compounds of formula I which comprises rearranging sclareolide, episclareolide or isosclareolide at an elevated temperature in acidic medium with dehydration and, if desired, reducing the carbon-carbon double bond present in the reaction product.
摘要:
Novel mixtures of bicylic ethers of the formulas ##STR1## wherein R represents an alkyl group of from one to four carbon atoms, said mixture having at least a 1.1:1 ratio of 1a to 1b, a process for their manufacture and their use as odorants are described.
摘要:
Novel compounds of the formula ##STR1## wherein: the symbols R.sup.1, R.sup.2, R.sup.4, R.sup.5 and R.sup.6 represent hydrogen or methyl, with the proviso that only one of R.sup.1, R.sup.2 and R.sup.4 represents methyl, and, when either or both R.sup.5 and R.sup.6 represent methyl, then R.sup.1, R.sup.2 and R.sup.4 represent hydrogen; and,either the symbol (.dbd.O) on the carbon designated by the number 1 or the symbol (.dbd.O) on the carbon designated by the number 3, represents a keto group, such that when the group is present on carbon 1, then carbon 3 may contain a methyl group.and their use as odorants are described.
摘要:
The oxime ester compound [(isopropylideneamino)oxy]-ethyl-2-[[(6-chloroquinoxalinyl)oxy]phenoxy]propionate, processes for the preparation thereof, herbicidal compositions containing said compound and methods of use of the composition.
摘要:
Certain allylmercaptans, some of which are novel, can be used to make novel flavorant and fragrance compositions. A novel method for making the allylmercaptans is disclosed.
摘要:
The present invention refers to a process for the production of controlled-release aqueous compositions comprising an active ingredient releasably contained within polymeric particles. The polymeric particles are obtainable by ring-opening metathesis polymerisation of a monomer of the general formula (I) wherein R1 and R2 have the same meaning as given in the specification, or a mixture thereof, in an aqueous phase in the presence of a ruthenium catalyst, an emulsifier, and an active ingredient.