A process for process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate of the following formula (3), wherein Ac represents an acetyl group, the process comprising steps of: preparing a nucleophilic reagent, 5-isopropenyl-2-methyl-8-nonenyl compound, of the following general formula (1): wherein M.sup.1 represents Li, MgZ.sup.1, ZnZ.sup.1, Cu, CuZ.sup.1, or CuLiZ.sup.1, wherein Z.sup.1 represents a halogen atom or a 5-isopropenyl-2-methyl-8-nonenyl group, from a 5-isopropenyl-2-methyl-8-nonenyl halide compound of the following general formula (4): wherein X.sup.1 represents a halogen atom; subjecting the nucleophilic reagent (1), 5-isopropenyl-2-methyl-8-nonenyl compound, to an addition reaction with at least one electrophilic reagent selected from the group consisting of formaldehyde, paraformaldehyde, and 1,3,5-trioxane, followed by a hydrolysis reaction to form 6-isopropenyl-3-methyl-9-decenol of the following formula (2); and acetylating 6-isopropenyl-3-methyl-9-decenol (2) to form 6-isopropenyl-3-methyl-9-decenyl acetate (3). ##STR00001##

A process for process for preparing 6-isopropenyl-3-methyl-9-decenyl acetate of the following formula (3), wherein Ac represents an acetyl group, the process comprising steps of: preparing a nucleophilic reagent, 5-isopropenyl-2-methyl-8-nonenyl compound, of the following general formula (1): wherein M.sup.1 represents Li, MgZ.sup.1, ZnZ.sup.1, Cu, CuZ.sup.1, or CuLiZ.sup.1, wherein Z.sup.1 represents a halogen atom or a 5-isopropenyl-2-methyl-8-nonenyl group, from a 5-isopropenyl-2-methyl-8-nonenyl halide compound of the following general formula (4): wherein X.sup.1 represents a halogen atom; subjecting the nucleophilic reagent (1), 5-isopropenyl-2-methyl-8-nonenyl compound, to an addition reaction with at least one electrophilic reagent selected from the group consisting of formaldehyde, paraformaldehyde, and 1,3,5-trioxane, followed by a hydrolysis reaction to form 6-isopropenyl-3-methyl-9-decenol of the following formula (2); and acetylating 6-isopropenyl-3-methyl-9-decenol (2) to form 6-isopropenyl-3-methyl-9-decenyl acetate (3). ##STR00001##

A process to prepare (9E,11Z)-9,11-hexadecadienyl acetate with a good yield and high purity of the general formula (1): CH.sub.3(CH.sub.2).sub.3CHCHCHCH(CH.sub.2).sub.aX.=The process includes a step of conducting a Wittig reaction between a haloalkenal of the general formula (2): OHCCHCH(CH.sub.2).sub.aX, and a triarylphosphonium pentylide of the general formula (3): CH.sub.3(CH.sub.2).sub.3CH.sup.P.sup.+Ar.sub.3, to obtain the 1-haloalkadiene, and the use of a (7E,9Z)-1-halo-7,9-tetradecadiene obtained by the process for a process of preparing (9E, 11Z)-9,11-hexadecadienyl acetate.

A process to prepare (9E,11Z)-9,11-hexadecadienyl acetate with a good yield and high purity of the general formula (1): CH.sub.3(CH.sub.2).sub.3CHCHCHCH(CH.sub.2).sub.aX.=The process includes a step of conducting a Wittig reaction between a haloalkenal of the general formula (2): OHCCHCH(CH.sub.2).sub.aX, and a triarylphosphonium pentylide of the general formula (3): CH.sub.3(CH.sub.2).sub.3CH.sup.P.sup.+Ar.sub.3, to obtain the 1-haloalkadiene, and the use of a (7E,9Z)-1-halo-7,9-tetradecadiene obtained by the process for a process of preparing (9E, 11Z)-9,11-hexadecadienyl acetate.

Methods selectively and efficiently produce 3,7-dimethyl-7-octenol and a carboxylic acid ester thereof. More specifically, a method produces 3,7-dimethyl-7-octenol, including steps of: subjecting a 3-methyl-3-butenyl nucleophilic reagent (2) and a 1,3-dihalo-2-methylpropane compound (3) to a coupling reaction to obtain a 2,6-dimethyl-6-heptenyl halide compound (4); converting the compound (4) into a 2,6-dimethyl-6-heptenyl nucleophilic reagent (5); and subjecting the nucleophilic reagent (5) to an addition reaction with at least one electrophilic reagent selected from the group made of formaldehyde, paraformaldehyde and 1,3,5-trioxane, followed by a hydrolysis reaction to obtain 3,7-dimethyl-7-octenol (6); and the other method.

##STR00001##

Methods selectively and efficiently produce 3,7-dimethyl-7-octenol and a carboxylic acid ester thereof. More specifically, a method produces 3,7-dimethyl-7-octenol, including steps of: subjecting a 3-methyl-3-butenyl nucleophilic reagent (2) and a 1,3-dihalo-2-methylpropane compound (3) to a coupling reaction to obtain a 2,6-dimethyl-6-heptenyl halide compound (4); converting the compound (4) into a 2,6-dimethyl-6-heptenyl nucleophilic reagent (5); and subjecting the nucleophilic reagent (5) to an addition reaction with at least one electrophilic reagent selected from the group made of formaldehyde, paraformaldehyde and 1,3,5-trioxane, followed by a hydrolysis reaction to obtain 3,7-dimethyl-7-octenol (6); and the other method.

##STR00001##

Ferrocenyl-based unsymmetrical ligands containing di(1-adamantyl)phosphino groups with general formula, Fc(Ad.sub.2P) (R.sub.2P) and corresponding metal complexes, include metal halide complexes, N-biphenyl metal cationic complexes and R-allyl metal cationic complexes, useful in catalysis. The ligands and complexes overcome problems with conventional catalysts, providing new routes to previously challenging cross-coupling reactions, including CP coupling, C.sub.sp2C.sub.sp3 coupling and other conventional cross-coupling applications, while being scalable so that they can be provided in sufficient quantity and purity for industrial applications.

Ferrocenyl-based unsymmetrical ligands containing di(1-adamantyl)phosphino groups with general formula, Fc(Ad.sub.2P) (R.sub.2P) and corresponding metal complexes, include metal halide complexes, N-biphenyl metal cationic complexes and R-allyl metal cationic complexes, useful in catalysis. The ligands and complexes overcome problems with conventional catalysts, providing new routes to previously challenging cross-coupling reactions, including CP coupling, C.sub.sp2C.sub.sp3 coupling and other conventional cross-coupling applications, while being scalable so that they can be provided in sufficient quantity and purity for industrial applications.

A high-yield process for preparing (4Z,7Z)-4,7-decadien-1-yl acetate, with reduced number of steps, without using a protecting group. A process for preparing (4Z,7Z)-4,7-decadien-1-yl acetate is provided, the process including at least the following steps: reducing a 10-halo-3,6-decadiyne of the general formula (1) to form a (3Z,6Z)-10-halo-3,6-decadiene of the general formula (2); and converting the (3Z,6Z)-10-halo-3,6-decadiene into (4Z,7Z)-4,7-decadien-1-yl acetate of the formula (4) having an acetoxy group in place of the halogen atom of the (3Z,6Z)-10-halo-3,6-decadiene.

##STR00001##

A high-yield process for preparing (4Z,7Z)-4,7-decadien-1-yl acetate, with reduced number of steps, without using a protecting group. A process for preparing (4Z,7Z)-4,7-decadien-1-yl acetate is provided, the process including at least the following steps: reducing a 10-halo-3,6-decadiyne of the general formula (1) to form a (3Z,6Z)-10-halo-3,6-decadiene of the general formula (2); and converting the (3Z,6Z)-10-halo-3,6-decadiene into (4Z,7Z)-4,7-decadien-1-yl acetate of the formula (4) having an acetoxy group in place of the halogen atom of the (3Z,6Z)-10-halo-3,6-decadiene.

##STR00001##