A compound represented by the formula I

##STR00001##

R.sub.1 is —(CHR.sub.4).sub.m—(CHR.sub.5).sub.n—(CHR.sub.6).sub.o—CHO, with R.sub.4, R.sub.5, R.sub.6 being independently selected from H or Me, and with m, n, o being independently selected from 0 and 1; R.sub.2 is H or Me; and R.sub.3 is a C3-C6 branched, linear or cyclic alkenyl residue. Said compounds are useful as perfume ingredients in personal care and household care products.

A compound represented by the formula I

##STR00001##

R.sub.1 is —(CHR.sub.4).sub.m—(CHR.sub.5).sub.n—(CHR.sub.6).sub.o—CHO, with R.sub.4, R.sub.5, R.sub.6 being independently selected from H or Me, and with m, n, o being independently selected from 0 and 1; R.sub.2 is H or Me; and R.sub.3 is a C3-C6 branched, linear or cyclic alkenyl residue. Said compounds are useful as perfume ingredients in personal care and household care products.

The present invention relates to the field of perfumery. More particularly, it concerns valuable new chemical intermediates for producing perfuming ingredients. Moreover, the present invention also comprises a process for producing compound of formula (I).

##STR00001##

The present invention relates to the field of perfumery. More particularly, it concerns valuable new chemical intermediates for producing perfuming ingredients. Moreover, the present invention also comprises a process for producing compound of formula (I).

##STR00001##

The present invention relates to the field of perfumery. More particularly, it concerns valuable new chemical intermediates for producing perfuming ingredients. Moreover, the present invention also comprises a process for producing compound of formula (I).

##STR00001##

This invention relates to a novel method for the synthesis of (2E,4E,6Z,8E)-8-(3,4-dihydronaphthalen-1(2H)-ylidene)-3,7-dimethylocta-2,4,6-trienoic acid. In particular, the invention relates to several improvements in several individual steps of the multi-step synthesis scheme

This invention relates to a novel method for the synthesis of (2E,4E,6Z,8E)-8-(3,4-dihydronaphthalen-1(2H)-ylidene)-3,7-dimethylocta-2,4,6-trienoic acid. In particular, the invention relates to several improvements in several individual steps of the multi-step synthesis scheme

A compound represented by the formula I ##STR00001##
R.sub.1 is (CHR.sub.4).sub.m(CHR.sub.5).sub.n(CHR.sub.6).sub.oCHO, with R.sub.4, R.sub.5, R.sub.6 being independently selected from H or Me, and with m, n, o being independently selected from 0 and 1; R.sub.2 is H or Me; and R.sub.3 is a C3-C6 branched, linear or cyclic alkenyl residue. Said compounds are useful as perfume ingredients in personal care and household care products.

A compound represented by the formula I ##STR00001##
R.sub.1 is (CHR.sub.4).sub.m(CHR.sub.5).sub.n(CHR.sub.6).sub.oCHO, with R.sub.4, R.sub.5, R.sub.6 being independently selected from H or Me, and with m, n, o being independently selected from 0 and 1; R.sub.2 is H or Me; and R.sub.3 is a C3-C6 branched, linear or cyclic alkenyl residue. Said compounds are useful as perfume ingredients in personal care and household care products.

The present invention relates to the field of perfumery and provides certain bi-cyclo derivatives of formula (I) ##STR00001##
wherein R.sup.1 represents a hydrogen atom or a C.sub.1-2 alkyl group; R.sup.2 represents a hydrogen atom or a methyl group; and A represents a group of formula C.sub.3-5 alkanediyl group; at least one of said R.sup.1 or R.sup.2 represents a group containing at least one carbon atom. The compounds are in the form of a E or Z isomer or of a mixture thereof. These compounds are valuable perfuming ingredients capable of imparting lily of the valley and citrus notes to consumer products.