V.mane Fils

Other

Martin Schroeder

Jean M Mane

Jean-Jacques Chanot

Piotr Jaunky

Fabrice Le Borgne

The invention relates, in particular to a tetrahydropyran(on) compound which is substituted in position beta with respect to a cycle oxygen of formula (I), wherein a substituent R is a linear alkyl radical in C2:C10 including, (CH)CH&#x2014; or CH&#x2014;(CH)&#x2014;, with m=0 or 1, or formula (II), wherein A is &#x2014;CH&#x2014; or &#x2014;CO&#x2014;, in the form of an odorant and to a method for the synthesis thereof by reducing oxo-ester. The use of the inventive compound in composition such as perfumery compositions in the ordinary sense of the term i.e. topic, in particular cosmetic compositions and care products.

Beta-substituted tetrandropyrana (on) s and method for the synthesis and the use thereof

A compound of formula (I); its structure represented with dotted lines being either cis- or trans-double bonds wherein: A) Rrepresents a hydrogen atom and Rrepresents an OH, OCHor OCHgroup while either a) R, R, and Reach represent hydrogen atoms with R, R, and Reach representing methyl radicals; b) R, R, and Reach represent hydrogen atoms with R, R, and Reach representing methyl radicals; or c) R, Rand Reach represent hydrogen atoms with R, R, and R, each representing methyl radicals; or B) Rrepresents a hydrogen atom; R, R, and Reach represent hydrogen atoms with R, R, and Reach representing a methyl radical while Rrepresents OH, OCHor OCHgroups when dotted lines are present; when dotted lines are absent, Rrepresents either OCHor OCHgroups. At least one compound is applied as an odorant agent.

Trimethylcyclododecatriene derivatives, use thereof and perfumed products containing the same

A compound of general formula (I) with or without the double bond illustrated by the dotted line. In formula (I), X is a CHO, CH2OH, CH2OC(O)R or CH(OR)2 group, and R represents a linear or branched C1-C5 alkyl or alkenyl chain. The synthesis method for the compound, and especially the 6,8-dimethyl-non-7-enal (1) prepared by the hydroformylation of the 5,7-dimethyl-octa-1,6-diene is also disclosed, as well as compositions containing the compounds of formula (I). Due to the odorant properties thereof, the compounds are highly useful in perfumery, especially for cosmetic products and household products.

Odorant compounds, synthesis method, and uses of said compounds

The invention concerns a novel compounds of formula (I), wherein the dotted line bond is present or not, and wherein Rrepresents: when the dotted line bond is present &#x2014;CHCHOH or &#x2014;CHCHOCOR or &#x2014;CHCHXCHCHOHR' or &#x2014;CHCHOCHR&#x2032;CHOH or formula (II) when the dotted line bond is absent &#x2014;CHCHOH or &#x2014;CHCHOCOR or &#x2014;COCHor formula (II) or &#x2014;CHCHXCHCHOHR&#x2032; or &#x2014;CHCHXCHCHOHR&#x2032; or &#x2014;CHCHOCHR&#x2032;CHOH or &#x2014;CHCHCOR&#x2032; or &#x2014;CHCHCHR&#x2032;OH or &#x2014;CHCHCHR&#x2032;OCOR or CHCHCHOHR&#x2032; or &#x2014;CHCHCHR&#x2032;OCOR, wherein R represents H, Me, Et, Pr, isoPr, But, isoBut, CHCH), (CH)CHCH, CHCH, (CH3)CCH, and R&#x2032; represents H, Me or Et, and X represents O, N or S, and their preparation method. Because of their fragrance, said compounds are highly interesting for the perfume industry, for cosmetic and care products.

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Ashford, United Kingdom

Martin Schroeder