Kao Corporation

Nao Toi

Yoshiaki Fujikura

Junji Koshino

Manabu Fujita

Hiroaki Ohnuma

Kazuyuki Fukuda

Makoto Kohama

Hajime Miyabe

Tomohito Kitsuki

Katsuhiko Tajima

Hiroaki Uchida

Rieko Yuki

The present invention relates to 5-benzylhexanol-2 and a perfume composition comprising the same. The perfume composition according to the present invention has a floral scent, high stability and, in the mixture system of a product, excellent scent lasting property.

5-Benzylhexanol-2 and perfume composition containing it

Perfume base composition

A 1-(2,6-dimethylphenyloxy)-2-alkanol of formula (1): ##STR1## wherein R is an alkyl group having 1 to 4 carbon atoms, and perfume compositions containing the alkanol having an intense woody note, and are useful as fragrance-imparting ingredients for various compositions, particularly in the cosmetic field.

1-(2,6-dimethylphenyloxy)-2-alkanols and perfume compositions containing

An .alpha.-(alkylcyclohexyloxy)-.beta.-alkanol of formula (1) ##STR1## wherein at least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 is the group ##STR2## wherein R.sup.9 and R.sup.10 are the same or different alkyl groups having 1 to 4 carbon atoms or are coupled with each other to form a cycloalkyl group, and R.sup.11 is a hydrogen atom or an alkyl group having 1 to 4 carbons or is a hydrogen atom when R.sup.9 and R.sup.10 form the cycloalkyl group, and the remaining R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 groups are hydrogen atoms or methyl groups, and wherein R.sup.6, R.sup.7 and R.sup.8 are hydrogen atoms or the same or different alkyl groups having 1 to 6 carbon atoms.

Alpha-(alkylcyclohexyloxy)-beta-alkanols and perfume compositions

A 2-(alkyl-cyclohexyl)-1-propanol is disclosed. The compound is represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2 individually represent a group selected from the members consisting of methyl-, ethyl-, n-propyl-, i-propyl-, t-butyl-, and sec-butyl groups, provided that the total carbon atoms of the R.sub.1 and R.sub.2 groups are 4 to 7; either R.sub.1 and R.sub.2 is a hydrogen atom, the other being a cyclohexyl group; or R.sub.1 and R.sub.2 together form a hexamethylene ring together with 2 carbon atoms in the cyclohexane ring. The compound possesses a long-lasting, woody, floral odor, and can be widely used as perfumery materials such as perfumes, soaps, shampoos, aromatic goods, and detergents.

2-(alkyl-cyclo)-1-propanol, a process for preparing the same and

Disclosed is a perfumery composition comprising a 2-cyclohexylpropionic acid or its derivative represented by the following formula (I): ##STR1## wherein R is a hydrogen atom, an alkyl group having 1-4 carbon atoms, or an alkenyl group having 2-4 carbon atoms. The compounds have a wide variety of odors and a wide application as perfumery compositions such as high-grade perfumery compositions, perfumes, soaps, shampoos, rinses, detergents, cosmetics, sprays, room fragrances, and the like.

Perfumery composition comprising 2-cyclohexylpropionic acid or its

2-Cyclohexylpropanal derivatives are disclosed. The derivatives are represented by the following formula (I): ##STR1## wherein P is a hydrogen atom and Q represents a group --CH.dbd.N--OH or a group --CH(OR).sub.2, wherein each R represents a lower alkyl group or two R's together form a lower alkylene group which may have a lower alkyl substituent, or P and Q together form a group ##STR2## wherein R' is a lower alkyl group. The compounds possess floral, fruity, or green odors and are useful for preparing perfume compositions.

Derivative of 2-cyclohexylpropanal and perfumery composition comprising

A novel 1,1-dimethyl-3-hydroxymethylindane represented by formula (I) is disclosed. ##STR1## A perfumery composition comprising the same is also disclosed.

1,1-dimethyl-3-hydroxymethylindane and perfumery composition comprising

Indane derivatives useful as fragrance-imparting components are disclosed. The represented indane derivatives by the formula (I), ##STR1## wherein ring A is a benzene or cyclohexane ring and R.sup.1 is a hydrogen atom, an alkyl group having 1-4 carbon atoms, or an alkanoyl group having 1-6 carbon atoms, provided that when ring A is benzene, R.sup.1 is a group other than hydrogen atom.

Indane derivative and perfumery composition comprising the same

A reformed vetiverol comprising 40% by weight or more of khusimol and 10% by weight or less of isovalencenol is disclosed. The vetiverol, containing a small amount of isovalencenol and a large amount of khusimol imparts a milder and more elegant odor than conventional vetiver oils or vetiverols. The reformed vetiverol can be prepared by a process comprising: esterifying alcohol components in a vetiver oil or a vetiverol, heating the esterified vetiver oil or a vetiverol to thermally decompose isovalencenol esters, hydrolyzing the remaining esters into alcohols, and separating the formed alcohols.

Reformed vetiver oil and vetiverol, process for preparing the same, and

A perfume base composition containing 2-cyclohexylpropanal is disclosed. 2-Cyclohexylpropanal can be prepared by subjecting 2-cyclohexylpropanol to liquid-phase dehydrogenation.

The invention provides derivatives of bornane-3-spiro-1'-cyclopentane with woody note scent useful as a base component in perfumery formulations which comprises those having a substituting group selected from a methoxyl, ethoxyl, formyloxyl and acetoxyl groups or two of substituting groups being either a hydroxyl group and a methyl group or a hydroxyl group and an ethyl group at the 2-position synthesized by any of the reactions of borane-3-spiro-1'-cyclopentan-2--ol or bornane-3-spiro-1'-cyclopentan-2-one with any of the reagents selected in accordance with the substituting group(s) to be introduced. The invention also provides perfumery compositions containing the above.

Growing community of inventors

Sakura, Japan

Nao Toi