Abstract: The carbonates of formula I deliver aldehydes and/or ketones in the presence of skin bacteria, enzymes or acidic or alkaline conditions. One carbonate molecule can provide one or more different compounds.

Abstract: The beta-ketoesters of formula I are useful as precursors for organoleptic compounds, especially for flavors, fragrances and masking agents and antimicrobial compounds.

Abstract: The compounds of the formula I are precursors for organoleptic and antimicrobial compounds. The latter are generated in the presence of skin bacteria, enzymes or acidic or alkaline conditions. One precursor molecule can provide one or more different compounds.

Abstract: The invention relates to compounds of the general formula ##STR1## in which R.sup.1 to R.sup.7 are, independently, H, methyl or ethyl, R.sup.8 +R.sup.9 together form methylene (--CH.sub.2 --) or a single bond, or R.sup.1 +R.sup.2 together form --(CH.sub.2).sub.n --, with n being 3 or 4, or R.sup.3 +R.sup.5 or R.sup.5 +R.sup.7 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 .alpha.,.beta. or .beta.,.gamma., 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.

Abstract: 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.

Abstract: 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.

Abstract: The acrylic acid esters of Formula I are useful for the delivery of organoleptic compounds, especially for flavors, fragrances, masking agents and antimicrobial compounds. They can also deliver fluorescent whitening agents.

Abstract: The invention is related to novel thiamacrolides, especially musk odorants, having extremely low threshold values, their use in functional perfumery such as fine perfumery, as well as to the preparation of thiamacrolide compounds.

Abstract: The invention relates to compounds of the general formula ##STR1## in which R.sup.1 to R.sup.7 are, independently, H, methyl or ethyl, R.sup.8 +R.sup.9 together form methylene (--CH.sub.2 --) or a single bond, or R.sup.1 +R.sup.2 together form --(CH.sub.2).sub.n --, with n being 3 or 4, or R.sup.3 +R.sup.5 or R.sup.5 +R.sup.7 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 .alpha.,.beta. or .beta., .gamma. 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.

Abstract: 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 formulaX--(Z).sub.n --CO--NH--CH--(COO--Y)--CH.sub.2 CH.sub.2 CONH.sub.2IThe definition of the substituents is given in the specification.

Abstract: The invention is concerned with novel odorants, including the compounds of the formula ##STR1## wherein R.sup.1 .dbd.R.sup.4 .dbd.CH.sub.3 and R.sup.2 .dbd.R.sup.3 .dbd.H orR.sup.1 .dbd.R.sup.2 .dbd.R.sup.3 .dbd.H and R.sup.4 .dbd.CH.sub.3, orR.sup.1 +R.sup.2 .dbd.--CH.sub.2 CH.sub.2 -- and R.sup.3 .dbd.H and R.sup.4 .dbd.CH.sub.3, orR.sup.1 .dbd.R.sup.4 .dbd.CH.sub.3 and R.sup.2 +R.sup.3 .dbd.--CH.sub.2 -- orR.sup.1 .dbd.CH.sub.3 and R.sup.2 .dbd.R.sup.3 .dbd.H and R.sup.4 .dbd.CH.sub.2 CH.sub.3 orR.sup.1 .dbd.R.sup.2 .dbd.R.sup.4 .dbd.CH.sub.3 and R.sup.3 .dbd.H and R.sup.5 .dbd.H (preferred) or CH.sub.3.

Abstract: The invention is concerned with the 7R/7S-diastereoisomer mixture of the formula ##STR1## in pure form, essentially free of the corresponding (4R)-isomers. The invention also concerns the 2R/2S-diastereoisomer mixture of the formula ##STR2## in pure form which is useful as an intermediate for producing I. In addition, the invention concerns a process for obtaining I by subjecting II to isochromane ring closure. Odorant compositions containing I and the use of I as an odorant are also described.

Abstract: Novel organosiloxane compounds have at least one unit ##STR1## any other units being present in this organosiloxane are ##STR2## wherein R is a C.sub.1-8 alkyl or aryl, R.sup.1 is H or a C.sub.1-5 alkyl, R.sup.2 is H, C.sub.1-5 alkyl or OR.sup.1, R.sup.3 is a C.sub.1-5 alkyl, R" is H, a monovalent C.sub.1-8 hydrocarbon or halogenated hydrocarbon group, a is 0, 1 or 2, b 0, 1, 2 or 3 and n 1 to 6, provided the--C(R.sup.1).dbd.CH--(CR.sub.2.sup.1).sub.n --O--group and the two R.sup.2 groups are linked to the aromatic ring at the para- and meta-positions in relation to the group --CH.dbd.C[C(O)OR.sup.3 ].sub.2.The compounds are useful as UV sunscreens. Compositions containing them are also included.

Abstract: Novel organosiloxane compounds have at least one unit ##EQU1## any other units being present in this organosiloxane are ##EQU2## wherein R is a C.sub.1-8 alkyl or aryl, R.sup.1 is H or a C.sub.1-5 alkyl, R.sup.2 is H, C.sub.1-5 alkyl or OR.sup.1, R.sup.3 is a C.sub.1-5 alkyl, R" is H, a monovalent C.sub.1-8 hydrocarbon or halogenated hydrocarbon group, a is 0, 1 or 2, b 0, 1, 2 or 3 and n 1 to 6, provided the--C(R.sup.1).dbd.CH--(CR.sup.1.sub.2).sub.n --O--group and the two R.sup.2 groups are linked to the aromatic ting at the para- and meta-positions in relation to the group --CH.dbd.C[C(O)OR.sup.3 ].sub.2.The compounds are useful as UV sunscreens. Compositions containing them are also included.

Abstract: Novel mixtures of bicyclic 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 Ia to Ib, a process for their manufacture and their use as odoranis and novel intermediates for their preparation are described.

Abstract: 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.

Abstract: A process for the manufacture of .alpha.- and .beta.-irone, namely the compounds of formula I, as well as novel intermediates in the process is provided.

Abstract: Organosilicon compounds having at least one unit of the general formula ##STR1## in which R represents alkyl, R' is a divalent alkylene, oxyalkylene, alkenylene or oxyalkenylene, Z represents an alkyl, alkoxy or hydroxyl group, a has a value of 0, 1, 2, or 3 and c is 0 or 1, wherein at least one of Z and R' is linked to the multivalent aryl group via an ether linkage, are useful for absorbing UV radiation. Especially if polymeric (with e.g. diorganosiloxane units) they can be incorporated in sunscreen preparations to improve their substantivity to the skin. A process for preparing the compounds is also disclosed.

Abstract: 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.

Abstract: Organosilicon compounds having at least one unit of the general formula ##STR1## in which R represents alkyl, R' is a divalent alkylene, oxyalkylene, alkenylene or oxyalkenylene, Z represents an alkyl, alkoxy or hydroxyl group, a has a value of 0, 1, 2 or 3 and c is 0 or 1, wherein at least one of Z and R' is linked to the multivalent aryl group via an ether linkage, are useful for absorbing UV radiation. Especially if polymeric (with e.g. diorganosiloxane units) they can be incorporated in sunscreen preparations to improve their substantivity to the skin. A process for preparing the compounds is also disclosed.