Control or repellency of bed bugs is accomplished by bringing the bed bugs into contact with at least one of the compounds of the structure (I); wherein R is selected from OH, OC(O)R.sub.4, OR.sub.6, (OR.sub.6).sub.2, wherein each R.sub.6 is independently selected from an alkyl group containing from 1 to 4 carbon atoms and R.sub.4 is a branched or straight chain saturated or unsaturated hydrocarbyl group with zero to two double bonds and from 1 to 15 carbon atoms; X is O or CH.sub.2, with the proviso that when X is O R can only be =0; each Z is independently selected from (CH) and (CH.sub.2) y is a numeral selected from 1 and 2; R.sub.1 is selected from H or a branched or straight chain saturated or unsaturated hydrocarbyl group with zero to two double bonds and from 1 to 15 carbon atoms. R.sub.2 is selected from H and a branched or straight chain saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms. R.sub.3 is selected from H, a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms, (CH.sub.2).sub.nOH, C(O)OR.sub.5, CH.sub.2C(O)OR.sub.7, CH.sub.2C(O)R.sub.8, C(O)NR.sub.9R.sub.10, CH.sub.2C(O)NR.sub.11R.sub.12 where each of R.sub.5, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11 and R.sub.12 is independently selected from H and a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms, and n is an integer of from 1 to 12; and the bond between the 2 and 3 positions in the ring structure may be a single or a double bond, and wherein the compounds of structure (1) contain from 11 to 20 total carbon atoms, except where R is O, XCH.sub.2 and y is 1 the compounds of structure (I) contain from 13 to 20 total carbon atoms in the compounds, wherein the compounds of structure (1) contain from 11 to 20 total carbon atoms, except where R is O, XCH2 and y is 1 the compounds of structure (I) contain from 13 to 20 total carbon atoms in the compounds, wherein the compounds of structure (1) contain from 11 to 20 total carbon atoms, except where R is =0, XCH.sub.2 and y is 1 the compounds of structure (I) contain from 13 to 20 total carbon atoms in the compounds. ##STR00001##

Control or repellency of bed bugs is accomplished by bringing the bed bugs into contact with at least one of the compounds of the structure (I); wherein R is selected from OH, OC(O)R.sub.4, OR.sub.6, (OR.sub.6).sub.2, wherein each R.sub.6 is independently selected from an alkyl group containing from 1 to 4 carbon atoms and R.sub.4 is a branched or straight chain saturated or unsaturated hydrocarbyl group with zero to two double bonds and from 1 to 15 carbon atoms; X is O or CH.sub.2, with the proviso that when X is O R can only be =0; each Z is independently selected from (CH) and (CH.sub.2) y is a numeral selected from 1 and 2; R.sub.1 is selected from H or a branched or straight chain saturated or unsaturated hydrocarbyl group with zero to two double bonds and from 1 to 15 carbon atoms. R.sub.2 is selected from H and a branched or straight chain saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms. R.sub.3 is selected from H, a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms, (CH.sub.2).sub.nOH, C(O)OR.sub.5, CH.sub.2C(O)OR.sub.7, CH.sub.2C(O)R.sub.8, C(O)NR.sub.9R.sub.10, CH.sub.2C(O)NR.sub.11R.sub.12 where each of R.sub.5, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11 and R.sub.12 is independently selected from H and a branched or straight chain, saturated or unsaturated hydrocarbyl group with zero to three double bonds and from 1 to 15 carbon atoms, and n is an integer of from 1 to 12; and the bond between the 2 and 3 positions in the ring structure may be a single or a double bond, and wherein the compounds of structure (1) contain from 11 to 20 total carbon atoms, except where R is O, XCH.sub.2 and y is 1 the compounds of structure (I) contain from 13 to 20 total carbon atoms in the compounds, wherein the compounds of structure (1) contain from 11 to 20 total carbon atoms, except where R is O, XCH2 and y is 1 the compounds of structure (I) contain from 13 to 20 total carbon atoms in the compounds, wherein the compounds of structure (1) contain from 11 to 20 total carbon atoms, except where R is =0, XCH.sub.2 and y is 1 the compounds of structure (I) contain from 13 to 20 total carbon atoms in the compounds. ##STR00001##

Highly active, recoverable and recyclable transition metal-based metathesis catalysts and their organometallic complexes including dendrimeric complexes are disclosed, including a Ru complex bearing a 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene and styrenyl ether ligand. The heterocyclic ligand significantly enhances the catalytic activity, and the styrenyl ether allows for the easy recovery of the Ru complex. Derivatized catalysts capable of being immobilized on substrate surfaces are also disclosed. The present catalysts can be used to catalyze ring-closing metathesis (RCM), ring-opening (ROM) and cross metatheses (CM) reactions, and promote the efficient formation of various trisubstituted olefins at ambient temperature in high yield.

Highly active, recoverable and recyclable transition metal-based metathesis catalysts and their organometallic complexes including dendrimeric complexes are disclosed, including a Ru complex bearing a 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene and styrenyl ether ligand. The heterocyclic ligand significantly enhances the catalytic activity, and the styrenyl ether allows for the easy recovery of the Ru complex. Derivatized catalysts capable of being immobilized on substrate surfaces are also disclosed. The present catalysts can be used to catalyze ring-closing metathesis (RCM), ring-opening (ROM) and cross metatheses (CM) reactions, and promote the efficient formation of various trisubstituted olefins at ambient temperature in high yield.

A process for purifying a crude composition includes a monoterpene compound selected from the group consisting of monocyclic monoterpene alcohols, monocyclic monoterpene ketones, bicyclic epoxy monoterpenes and mixtures of two or more of the aforementioned compounds, such as preferably a monocyclic monoterpene alcohol. The process comprises performing a layer crystallization with a melt of the crude composition, and the melt of the crude composition subjected to the layer crystallization includes oxygen-containing solvent in a concentration of 20 ppm to 2% by weight. The oxygen-containing solvent is selected from the group consisting of water, C1-6-alcohols, C1-6-carboxylic acids, C1-6-ketones, C1-6-aidehydes, C1-12-ethers, C1-12-esters and mixtures of two or more of the aforementioned solvents.

A process for purifying a crude composition includes a monoterpene compound selected from the group consisting of monocyclic monoterpene alcohols, monocyclic monoterpene ketones, bicyclic epoxy monoterpenes and mixtures of two or more of the aforementioned compounds, such as preferably a monocyclic monoterpene alcohol. The process comprises performing a layer crystallization with a melt of the crude composition, and the melt of the crude composition subjected to the layer crystallization includes oxygen-containing solvent in a concentration of 20 ppm to 2% by weight. The oxygen-containing solvent is selected from the group consisting of water, C1-6-alcohols, C1-6-carboxylic acids, C1-6-ketones, C1-6-aidehydes, C1-12-ethers, C1-12-esters and mixtures of two or more of the aforementioned solvents.

The invention comprises novel chiral metal complex compounds of the formula

##STR00001##

wherein M, PR.sup.2, R.sup.3 and R.sup.4 are outlined in the description, its stereoisomers, in the form as a neutral complex or a complex cation with a suitable counter ion. The chiral metal complex compounds can be used in asymmetric reactions, particularly in asymmetric reductions of ketones, imines or oximes.

The invention comprises novel chiral metal complex compounds of the formula

##STR00001##

wherein M, PR.sup.2, R.sup.3 and R.sup.4 are outlined in the description, its stereoisomers, in the form as a neutral complex or a complex cation with a suitable counter ion. The chiral metal complex compounds can be used in asymmetric reactions, particularly in asymmetric reductions of ketones, imines or oximes.

The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Fe complexes with tridentate ligands, having one amino or imino coordinating group and two phosphino coordinating groups, in hydrogenation processes for the reduction of ketones or aldehydes, into the corresponding alcohol or diol, respectively.

The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Fe complexes with tridentate ligands, having one amino or imino coordinating group and two phosphino coordinating groups, in hydrogenation processes for the reduction of ketones or aldehydes, into the corresponding alcohol or diol, respectively.