The present invention provides a process for preparing (9Z,11E)-9,11-hexadecadienal of the following formula (4), the process comprising: subjecting (2E)-2-heptenal of the following formula (1) to a Wittig reaction with a triarylphosphonium 9,9-dialkoxynonylide compound of the following general formula (2), wherein Ar represents an aryl group that may be same with or different from each other, and R.sup.1 and R.sup.2 represent, independently of each other, a monovalent hydrocarbon group having 1 to 15 carbon atoms, or R.sup.1 and R.sup.2 may form together a divalent hydrocarbon group, R.sup.1-R.sup.2, having 2 to 10 carbon atoms to form a (5E,7Z)-16,16-dialkoxy-5,7-hexadecadiene compound of the following general formula (3), wherein R.sup.1 and R.sup.2 are as defined above; and hydrolyzing the (5E,7Z)-16,16-dialkoxy-5,7-hexadecadiene compound (3) to form (9Z,11E)-9,11-hexadecadienal (4).

##STR00001##

The present invention provides a process for preparing (9Z,11E)-9,11-hexadecadienal of the following formula (4), the process comprising: subjecting (2E)-2-heptenal of the following formula (1) to a Wittig reaction with a triarylphosphonium 9,9-dialkoxynonylide compound of the following general formula (2), wherein Ar represents an aryl group that may be same with or different from each other, and R.sup.1 and R.sup.2 represent, independently of each other, a monovalent hydrocarbon group having 1 to 15 carbon atoms, or R.sup.1 and R.sup.2 may form together a divalent hydrocarbon group, R.sup.1-R.sup.2, having 2 to 10 carbon atoms to form a (5E,7Z)-16,16-dialkoxy-5,7-hexadecadiene compound of the following general formula (3), wherein R.sup.1 and R.sup.2 are as defined above; and hydrolyzing the (5E,7Z)-16,16-dialkoxy-5,7-hexadecadiene compound (3) to form (9Z,11E)-9,11-hexadecadienal (4).

##STR00001##

The present invention provides a process for preparing (9Z,11E)-9,11-hexadecadienal of the following formula (4), the process comprising: subjecting (2E)-2-heptenal of the following formula (1) to a Wittig reaction with a triarylphosphonium 9,9-dialkoxynonylide compound of the following general formula (2), wherein Ar represents an aryl group that may be same with or different from each other, and R.sup.1 and R.sup.2 represent, independently of each other, a monovalent hydrocarbon group having 1 to 15 carbon atoms, or R.sup.1 and R.sup.2 may form together a divalent hydrocarbon group, R.sup.1-R.sup.2, having 2 to 10 carbon atoms to form a (5E,7Z)-16,16-dialkoxy-5,7-hexadecadiene compound of the following general formula (3), wherein R.sup.1 and R.sup.2 are as defined above; and hydrolyzing the (5E,7Z)-16,16-dialkoxy-5,7-hexadecadiene compound (3) to form (9Z,11E)-9,11-hexadecadienal (4).

##STR00001##

The present invention primarily relates to the use of 3-(4-isobutyl-2-methyl-cyclohexyl)pro-panal, 3-(4-Isobutyl-6-methyl-cyclohexa-1,5-dien-1-yl)propanal, 3-(4-isobutyl-6-meth-ylene-cyclohexen-1-yl)propanal, or 3-(4-isobutyl-6-methyl-cyclohexen-1-yl)propanal as perfuming ingredients. Moreover, the present invention relates to perfume compositions and perfumed products comprising the before mentioned perfuming ingredients. Still more particularly, the invention relates to a method for producing said perfumed products and a method of imparting and/or increasing i) floral and/or ii) green and/or iii) lily of the valley odor characteristics to perfumed products. This invention also relates to 3-(4-isobutyl-2-methyl-cyclohexyl)propanal, 3-(4-Isobutyl-6-methyl-cyclohexa-1,5-dien-1-yl)propanal, 3-(4-isobutyl-6-methylene-cyclohexen-1-yl)propanal, or 3-(4-isobutyl-6-methyl-cyclohexen-yl)propanal and a process for the preparation of said compounds.

The present invention primarily relates to the use of 3-(4-isobutyl-2-methyl-cyclohexyl)pro-panal, 3-(4-Isobutyl-6-methyl-cyclohexa-1,5-dien-1-yl)propanal, 3-(4-isobutyl-6-meth-ylene-cyclohexen-1-yl)propanal, or 3-(4-isobutyl-6-methyl-cyclohexen-1-yl)propanal as perfuming ingredients. Moreover, the present invention relates to perfume compositions and perfumed products comprising the before mentioned perfuming ingredients. Still more particularly, the invention relates to a method for producing said perfumed products and a method of imparting and/or increasing i) floral and/or ii) green and/or iii) lily of the valley odor characteristics to perfumed products. This invention also relates to 3-(4-isobutyl-2-methyl-cyclohexyl)propanal, 3-(4-Isobutyl-6-methyl-cyclohexa-1,5-dien-1-yl)propanal, 3-(4-isobutyl-6-methylene-cyclohexen-1-yl)propanal, or 3-(4-isobutyl-6-methyl-cyclohexen-yl)propanal and a process for the preparation of said compounds.

The present invention primarily relates to the use of 3-(4-isobutyl-2-methyl-cyclohexyl)pro-panal, 3-(4-Isobutyl-6-methyl-cyclohexa-1,5-dien-1-yl)propanal, 3-(4-isobutyl-6-meth-ylene-cyclohexen-1-yl)propanal, or 3-(4-isobutyl-6-methyl-cyclohexen-1-yl)propanal as perfuming ingredients. Moreover, the present invention relates to perfume compositions and perfumed products comprising the before mentioned perfuming ingredients. Still more particularly, the invention relates to a method for producing said perfumed products and a method of imparting and/or increasing i) floral and/or ii) green and/or iii) lily of the valley odor characteristics to perfumed products. This invention also relates to 3-(4-isobutyl-2-methyl-cyclohexyl)propanal, 3-(4-Isobutyl-6-methyl-cyclohexa-1,5-dien-1-yl)propanal, 3-(4-isobutyl-6-methylene-cyclohexen-1-yl)propanal, or 3-(4-isobutyl-6-methyl-cyclohexen-yl)propanal and a process for the preparation of said compounds.

The invention relates to new intermediates in the synthesis of Eldecalcitol and to processes for the preparation of said intermediates and of Eldecalcitol.

The invention relates to new intermediates in the synthesis of Eldecalcitol and to processes for the preparation of said intermediates and of Eldecalcitol.

The present disclosure relates to a composition that includes a compound having the structure R.sub.1O—(CH.sub.2O).sub.n—R.sub.2 and a cetane number between about 65 and about 100, where n is between 1 and 10, inclusively, R.sub.1 includes a first alkyl group, and R.sub.2 includes a second alkyl group.

The present disclosure relates to a composition that includes a compound having the structure R.sub.1O—(CH.sub.2O).sub.n—R.sub.2 and a cetane number between about 65 and about 100, where n is between 1 and 10, inclusively, R.sub.1 includes a first alkyl group, and R.sub.2 includes a second alkyl group.