We have discovered that a di-epoxide can be converted to a dialdehyde using an amorphous silica-alumina catalyst. The method comprises contacting a di-epoxide mixed in an organic solvent with a silica-alumina catalyst to form a solvent and dialdehyde reaction product mixture and separating said dialdehyde from said reaction mixture. The dialdehydes have utility as chemical intermediates, and particular utility in processes to make enol ether compounds which can be used in applications as plasticizers, diluents, wetting agents, coalescing aids and as intermediates in chemical processes.

A composition comprising a ternary intermetallic compound X.sub.2YZ, wherein X, Y, and Z are different from one another; X being selected from the group consisting of Mn, Fe, Co, Ni, Cu, and Pd; Y being selected from the group consisting of Cr, Co, and Ni; and Z being selected from the group consisting of Al, Si, Ga, Ge, In, Sn, Zn, and Sb; wherein the ternary intermetallic compound is supported on a porous oxidic support material. The composition may be prepared by providing a liquid mixture of sources of X, Y, and Z, and the porous oxidic support material, removing the liquid and heating the resulting mixture in a reducing atmosphere. The composition is useful as catalyst.

A composition comprising a ternary intermetallic compound X.sub.2YZ, wherein X, Y, and Z are different from one another; X being selected from the group consisting of Mn, Fe, Co, Ni, Cu, and Pd; Y being selected from the group consisting of Cr, Co, and Ni; and Z being selected from the group consisting of Al, Si, Ga, Ge, In, Sn, Zn, and Sb; wherein the ternary intermetallic compound is supported on a porous oxidic support material. The composition may be prepared by providing a liquid mixture of sources of X, Y, and Z, and the porous oxidic support material, removing the liquid and heating the resulting mixture in a reducing atmosphere. The composition is useful as catalyst.

A functionalized magnetic nanoparticle including an organometallic sandwich compound and a magnetic metal oxide. The functionalized magnetic nanoparticle may be reacted with a metal precursor to form in a catalyst for various CC bond forming reactions. The catalyst may be recovered with ease by attracting the catalyst with a magnet.

A functionalized magnetic nanoparticle including an organometallic sandwich compound and a magnetic metal oxide. The functionalized magnetic nanoparticle may be reacted with a metal precursor to form in a catalyst for various CC bond forming reactions. The catalyst may be recovered with ease by attracting the catalyst with a magnet.

An aryl-substituted alkanal compound having a molecular weight of less than 300 g/mol and which bears a substituent on the aryl ring ortho to a substituent bearing the aldehyde functionality. Said compounds are useful as perfume ingredients in personal care and household care products.

An aryl-substituted alkanal compound having a molecular weight of less than 300 g/mol and which bears a substituent on the aryl ring ortho to a substituent bearing the aldehyde functionality. Said compounds are useful as perfume ingredients in personal care and household care products.

A compound represented by the formula 1 ##STR00001## wherein R.sub.1 is H, or when R.sub.2 and R.sub.3 is H, then R.sub.1 is CHR.sub.5CHR.sub.6CHO, CR.sub.5CR.sub.6CHO or C(CH.sub.3)CHO, wherein R.sub.5, R.sub.6 each independently may represent H or methyl; R.sub.2 is H, or when R.sub.1 and R.sub.3 is H, then R.sub.2 is CHR.sub.5CHR.sub.6CHO, CR.sub.5CR.sub.6CHO or C(CH.sub.3)CHO, wherein R.sub.5, R.sub.6 each independently may represent H or methyl; R.sub.3 is H, or when R.sub.1 and R.sub.2 is H, then R.sub.3 is CHR.sub.5CHR.sub.6CHO, CR.sub.5CR.sub.6CHO or C(CH.sub.3)CHO, wherein R.sub.5, R.sub.6 each independently may represent H or methyl; and R.sub.4 is methyl or a branched or linear, saturated or unsaturated, unsubstituted or substituted (optionally with cyclopropyl groups), C.sub.2-C.sub.7 alkyl or alkenyl residue, preferentially isobutyl, isoamyl. Said compounds are useful as perfume ingredients in personal care and household care products.

A compound represented by the formula 1 ##STR00001## wherein R.sub.1 is H, or when R.sub.2 and R.sub.3 is H, then R.sub.1 is CHR.sub.5CHR.sub.6CHO, CR.sub.5CR.sub.6CHO or C(CH.sub.3)CHO, wherein R.sub.5, R.sub.6 each independently may represent H or methyl; R.sub.2 is H, or when R.sub.1 and R.sub.3 is H, then R.sub.2 is CHR.sub.5CHR.sub.6CHO, CR.sub.5CR.sub.6CHO or C(CH.sub.3)CHO, wherein R.sub.5, R.sub.6 each independently may represent H or methyl; R.sub.3 is H, or when R.sub.1 and R.sub.2 is H, then R.sub.3 is CHR.sub.5CHR.sub.6CHO, CR.sub.5CR.sub.6CHO or C(CH.sub.3)CHO, wherein R.sub.5, R.sub.6 each independently may represent H or methyl; and R.sub.4 is methyl or a branched or linear, saturated or unsaturated, unsubstituted or substituted (optionally with cyclopropyl groups), C.sub.2-C.sub.7 alkyl or alkenyl residue, preferentially isobutyl, isoamyl. Said compounds are useful as perfume ingredients in personal care and household care products.

Provided are a novel aldehyde compound suitable for a fragrance and a fragrance ingredient, or a raw material thereof, and a method for producing the aldehyde compound, as well as a fragrance composition containing the aldehyde compound as an active ingredient, and use of the aldehyde compound as a fragrance.

A compound represented by Formula (1):

##STR00001##

where in Formula (1), R is a hydrogen atom or a methyl group.