Abstract: This invention relates to a catalyst comprising a solid surface having immobilized thereon an aqueous solution of one or more organic complexes of rhodium. The catalyst is useful for promoting hydroformylation, hydrogenation and other chemical reactions in essentially water-immiscible organic liquid reactant phases.

Abstract: The instant invention relates to a method for converting phosphorus containing polymers from a two dimensional layered structure into a three dimensional structure by crosslinking such layers. The method and the resulting crosslinked polymers may be used to encapsulate active materials such as catalysts, pesticides, etc. by intercalating such active materials between the layers prior to crosslinking. Thus, the egress of said active materials into the environment during use may be hindered or prevented.

Abstract: The present invention refers to the compounds (.mu.-hydrazine-N.sup.1 :N.sup.2)-bis[bis(triphenylphosphine)-chlororhodium (I)] and di(.mu.-hydrazine-N.sup.1 :N.sup.2)-bis[bis(triphenylphosphine)rhodium (I)] dichloride, which are homogenous hydrogenation catalysts and their application in the hydrogenation of the exocyclic methylene group of acid addition salts of 6-demethyl-6-deoxy-6-methylene-5-hydroxytetracycline (methacycline) to prepare .alpha.-6-deoxy-5-hydroxytetracycline (doxycycline).

Abstract: In a supported catalyst for the preparation of monocarboxylic anhydrides by carbonylation of the appropriate esters or ethers, where, in the supported catalyst, an organosilicon compound is bonded, as a polyfunctional coupling agent, on the one hand to a support material and on the other hand to a noble-metal compound from group VIII of the Periodic Table of the Elements, the coupling agent is a chelate-forming organosilicon compound of the general formula ##STR1## where X=Cl, Br or --OR.sup.2 ;Y=--NR.sub.2.sup.4, a nitrogen-containing aryl radical, --PR.sub.2.sup.4, AsR.sub.2.sup.4, --SR.sup.4 or --SH;Z=zero, arylene or phenylene (optionally ortho-, meta- or para-substituted),R.sup.1 =C.sub.1 to C.sub.5 -alkyl;R.sup.2 =C.sub.1 to C.sub.5 -alkyl or --C.sub.6 H.sub.5 ;R.sup.3 =--H or C.sub.1 to C.sub.3 -alkyl;R.sup.4 =C.sub.1 to C.sub.6 -alkyl, C.sub.5 or C.sub.6 -cycloalkyl or --C.sub.6 H.sub.5 or --CH.sub.2 C.sub.6 H.sub.5, which are optionally substituted by halogen, methoxy, ethoxy or C.sub.1 to C.sub.

Abstract: A process for the production of organic carboxylic acids by the catalytic reaction of organic formate esters in contact with carbon monoxide and a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo oxygen atom attached to a phosphorus atom or a carbon atom to form a Z group and the ##STR1## group in said Z group is located at least one carbon atom removed and preferably from 2-4 carbon atoms removed from the phosphorus atom of the molecules represented by the formulas ##STR2## and a halogen source, under mild reaction conditions, wherein R' is H, aryl, alkaryl, aralkyl or alkyl, and wherein 1 or more of said R' groups can be substituted with a Z group but not more than 3 of said R' groups in the molecule are so substituted; a is an integer from 0-4; b is an integer from 0-3; and Z is P(O)R'R'; --C(O)OR" or C(O)R", wherein R" is R'.

Abstract: The present invention refers to complexes prepared by reacting rhodium trinitrate with a suitable hydrazine and a suitable tertiary phosphine, more specifically to the compounds di(.mu.-hydrazine-N.sup.1 :N.sup.2)-bis[bis(triphenylphosphine)rhodium (I)]dinitrate and .mu.-3-carbopentazane-N.sup.1, N.sup.4 :N.sup.2, N.sup.5 -bis[bis(triphenylphosphine)rhodium (I)]dinitrate, which are homogenous hydrogenation catalysts and their application in the hydrogenation of the exocyclic methylene group of acid addition salts of 6-demethyl-6-deoxy-6-methylene-5-hydroxytetracycline (methacycline) to prepare .alpha.-6-deoxy-5-hydroxy-tetracycline (doxycycline).

Abstract: Dirhodium complexes such as tetrakis(.mu.-2-anilinopyridinato)dirhodium are used in the catalytic reduction of dioxygen. An electric potential is applied to the dirhodium complex either dissolved in solution or supported by an electrode.

Abstract: The present invention refers to the compounds (.mu.-hydrazine-N.sup.1 :N.sup.2)-bis[bis(triphenylphosphine)-chlororhodium (I)] and di(.mu.-hydrazine-N.sup.1 :N.sup.2)-bis[bis(triphenylphosphine)rhodium (I)] dichloride, which are homogenous hydrogenation catalysts and their application in the hydrogenation of the exocyclic methylene group of acid addition salts of 6-demethyl-6-deoxy-6-methylene-5-hydroxytetracycline (methacycline) to prepare .alpha.-6-deoxy-5-hydroxytetracycline (doxycycline).

Abstract: A novel ligand for use in hydroformylation reactions wherein at least one olefin having from 2 to 20 carbon atoms is contacted in a reaction zone at a temperature of from about 20.degree. C. to about 250.degree. C. and a pressure of from about 50 psig to about 800 psig with hydrogen, carbon monoxide, and a catalyst containing rhodium, the ligand having the formula ##STR1## wherein: n is 1-4;each R is independently selected from hydrogen, alkyl, alkoxy, aryloxy, aryl, aralky, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl or cyano;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.1 substituents; andeach Y is independently selected from the elements N, P, As, Sb and Bi.

Abstract: A process for the preparation of a rhodium catalyst comprising dissolving a carboxylic acid salt of rhodium in a solvent taken from the class consisting of aliphatic, cycloaliphatic, aromatic hydrocarbons and mixtures thereof. The carboxylic acid has 2 to 18 carbon atoms. This salt is reacted with carbon monoxide and hydrogen to form a rhodium hydridrocarbonyl which is reacted with an aqueous solution of a triaryl phosphine. The aqueous solution may be present during the initial reaction of the rhodium salt or may be added thereafter. A catalyst which is the product of the foregoing process is also disclosed, as is a method of producing aldehydes using the catalyst.

Abstract: Novel dinuclear and water-soluble rhodium complexes, well suited as hydroformylation catalysts, as are aqueous solutions thereof, have the general formula: ##STR1## in which R and R', which are identical or different, are each a substituted or unsubstituted hydrocarbon radical, with the proviso that R and R' may together form a single divalent radical, TAPS is a sulfonated triarylphosphine ligand, and L is a carbonyl (CO) or a TAPS ligand.

Abstract: A hydroformylation process including contacting hydroformylation stock in a reaction zone at a temperature of from about 20.degree. C. to about 250.degree. C. and a pressure of from about 15 psig to about 800 psig with hydrogen, carbon monoxide, wherein the catalyst comprises rhodium in chemical complex with one or more ligands of the formulae ##STR1## wherein: the x and y bonds are adjacent on ring structures,each R when present as a substituent is independently selected from hydrogen, alkyl, alkoxy, aryloxy, aryl, cyano, aralkyl, alkaryl, or the like;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, or the like;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.1 substituents; andeach Y is independently selected from the elements N, P, As, Sb and Bi.

Abstract: A hydroformylation process comprising contacting hydroformylation stock in a reaction zone at a temperature of from about 20.degree. C. to about 250.degree. C. and a pressure of from about 15 psig to about 800 psig with hydrogen, carbon monoxide and a catalyst comprising rhodium in chemical complex with one or more ligands of the formula ##STR1## wherein: the x and y bonds are adjacent on ring structures,each R when present as a substituent is independently selected from hydrogen, alkyl, alkoxy, aryloxy, aryl, cyano, aralkyl, alkaryl, or the like;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, or the like;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.1 substituents; andeach Y is independently selected from the elements N, P, As, Sb and Bi.

Abstract: A homogeneous stereospecific rhodium complex hydrogenation catalyst is prepared using a degassed organic solvent and eventually water.

Abstract: A process for the production of 1,12-dodecanoic diacid by hydroformylating an unsaturated carboxy compound in the presence of a rhodium catalyst and oxidation of the aldehyde with oxygen, wherein undecyl-10-ene-acid is hydroformylated in the presence of hydridotristriphenylphosphine-rhodium-carbonyl combined with triphenylphosphine and/or triphenylphosphite, and the 11-formyl undecanioc acid which is thus formed is oxidized with oxygen in the presence of inorganic and organic Co(II) salts.

Abstract: A process for the production of 1,12-dodecanoic diacid by hydroformylating an olefin in the presence of a rhodium catalyst and oxidation with oxygen of the aldehyde which is thus formed wherein 1,9-decadiene is hydroformylated in the presence of hydridotris-triphenylphosphine-rhodium-carbonyl combined with triphenylphospine and/or triphenylphosphite, and the 1,12-dodecanedialdehyde which was thus formed is oxidized with oxygen in the presence of inorganic or organic Co(II) salts.

Abstract: Preparation of diesters of alkanedioic acids by reacting a dihydrocarbyl peroxide with carbon monoxide and optionally with an alpha-ethylenically unsaturated compound in the presence of a solvent, a Group VIII noble metal or a compound thereof and of a cupric salt.

Abstract: A catalyst system having high activity and selectivity to carbonylation products comprises a rhodium-containing catalytically active component and a halogen-containing promoter component, the halogen being selected from the group consisting of bromine, iodine, bromide compounds, and iodide compounds.

Abstract: Transition metal-poly-phosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-poly-phosphite ligand complex compositions.

Abstract: A process for the preparation of an ester of dicarboxylic acid from an alkene, carbon monoxide. The process is catalyzed by a catalyst which comprises a platinum group metal, for example palladium, and a copper compound. To avoid catalyst deactivation the process is carried out in the presence of a dihydrocarbyl peroxide which is reduced to a hydrocarbyl alcohol under the process conditions. The process can be used, for example, to prepare succinate esters from ethylene, carbon monoxide, an alcohol and a dihydrocarbyl peroxide such as di-tertiary butyl peroxide.

Abstract: A rhodium catalyzed hydroformylation process carried out in the presence of free triarylphosphine ligand and free organic tertiary bisphosphine monoxide ligand, and catalytic precursor solutions for said process.

Abstract: A novel process for the preparation of aldehydes by reacting olefins with carbon monoxide and hydrogen in the presence of a catalyst system comprised of rhodium in metallic form or as a compound and a water-soluble quaternary ammonium salt of a mono, di or trisulfonated arylphosphine.

Abstract: Novel catalyst for the photochemical conversion and storage of radiant energy through the conversion of strained cyclic non-conjugated carbon containing compounds to their corresponding conjugated forms comprises ionically bonding a transition metal complex having a square planar geometry and multiple sites of coordination with an anion-exchange resin. A method is provided for the preparation of the novel catalyst and comprises forming an acid salt derivative of the transition metal complex and mixing it together with an anion-exchange resin. A process wherein the novel catalyst is added to a strained cyclic non-conjugated carbon containing compound resulting in the release of heat energy through the conversion of the non-conjugated carbon containing compound to its conjugated form. A process and sealed container means wherein the non-conjugated carbon containing compound and the catalyst are in compartments and are separated until heat energy is required.

Abstract: A process for the production of organic carboxylic anhydrides by the catalytic reaction of a methyl carboxylate and carbon monoxide in contact with a homogeneous catalyst system of rhodium metal atom, a phosphorus-containing ligand in which there is present at least one oxo (.dbd.O) oxygen atom attached to a phosphorus atom or a carbon atom to form a Z group and the ##STR1## group in said Z group is located at least one carbon atom removed and preferably from 2-4 carbon atoms removed from the phosphorus atom of the molecules represented by the formulas ##STR2## and a halogen source, under mild reaction conditions, wherein R' is aryl, alkaryl, aralkyl or alkyl, and wherein 1 or more of said R' groups can be substituted with a Z group but not more than 3 of said R' groups in the molecule are so substituted; a is an integer from 0-4; b is an integer from 0-3; and Z is P(O)R'R'; --C(O)OR" or C(O)R", wherein R" is R' or --H.

Abstract: A process is disclosed for preparation of a carboxylic acid RCOOH wherein R represents certain alkyl, cycloalkyl or aralkyl groups, by heating a formic acid ester HCOOR in the presence of carbon monoxide, a soluble rhodium catalyst and an iodide or bromide source, promoted by certain oxygen-containing compounds of phosphorus, arsenic or antimony.

Abstract: A hydroformylation catalyst of the formulaL.sub.a CuCo(CO).sub.b L'cwherein L is a monodentate phosphine, a bidentate phosphine or a bidentate amine, a is 1-3, b is 3 or 4, c is 0 or 1; provided that, where b=4, c=0 and L' is CO, phosphine or phosphite. Where the catalysts have the formulaL.sub.a CuCo(CO).sub.4the compounds are novel.

Abstract: Stable homogeneous hydrogenation catalysts are prepared by reacting a rhodium salt or complex with a hydrazine in the presence or absence of a tertiary phosphine.

Abstract: A process for producing linear aldehydes or alcohols from olefins using a mixed transition metal hydroformylation catalyst wherein the catalyst comprises a mixture of transition metal compounds wherein the first component is an anionic transition metal catalyst having a charge of at least -2. The formula of the anionic compound is generally defined as M.sup.+n [H.sub.y A.sub.x L.sub.z ].sup.-n wherein A represents Fe, Ru, Os, W, Cr, Co, Rh, Ir or Mo, M is a cationic species, n is an integer greater than or equal to 2, x is an integer greater than or equal to 1, y is an integer greater than or equal to 0 and z is an integer generally corresponding to the number of available coordination bonding sites of A. The second component is a Group VIII compound, preferably a halide or carbonyl of the Group VIII compound. These compounds exhibit high selectivity toward linear products.

Abstract: A hydroformylation process for producing aldehydes using a bisphosphine monooxide ligand and catalytic precursor solutions for said process.

Abstract: A novel transition metal catalyst which has a phosphido-type linkage is much less subject to metal loss during operations because of its greater bond strength. This catalyst will hydrogenate unsaturated hydrocarbons under milder conditions than most prior art catalysts.

Abstract: An improved process for the preparation of .alpha.-6-deoxytetracyclines and more particularly to the stereo specific hydrogenation of the 6-methylene group of 6-deoxy-6-demethyl-6-methylene-5-hydroxytetracyline and of its 11a-halo-analog, is described in which the catalyst is the reaction product of a rhodium salt or a complex with a hydrazine or salt thereof.

Abstract: Organic compound conversion in the presence of a new class of heterogeneous catalyst is provided. Said new class of heterogeneous catalyst comprises a substrate having a minimum surface area of about 10 m.sup.2 /g and having pores with a minimum pore diameter of about 5 Angstrom Units, said substrate being modified by at least one amine functional member coordinated to a metal function, said amine functional member acting as a bridging member between said substrate and said metal function.

Abstract: The present invention relates to hydrogenation and hydroformylation catalysts based on a binuclear rhodium complex having the formula: ##STR1## wherein X and X' can be the same or different; when X and X' are the same they are organic tertiary phosphite groups and when different X is a CO group and X' is an organic tertiary phosphite group or an aromatic phosphine group, and SY and SY' are thiolato groups. The invention also comprises the processes of hydroformylation and hydrogenation using such catalytic complex.

Abstract: Compounds according to formula:M.sup.1.sub.a [M.sup.2 (CN).sub.b (A).sub.c ].sub.d.w M.sup.3 D.sub.e.x H.sub.2 O. y L. z H.sub.n E.sub.m,wherein M.sup.1 represents at least one of Zn(II), Fe(II), Co(II), Ni(ii), Mn(II), Cu(II), Sn(II), or Pb(II); M.sup.2 represents at least one of Fe(II), Fe(III), Co(III), Cr(III), Mn(II), Mn(III), Ir(III), Rh(III), Ru(II), V(IV) or V(V); M.sup.3 represents M.sup.1 and/or M.sup.2 ; A, D and E each represent an anion which may be the same or different; L represents an alcohol, aldehyde, ketone, ether, ester, amide, nitrile or sulphide or mixtures thereof; a and d are numbers to satisfy the valency state of M.sup.1 and M.sup.2 in the double metal cyanide part of the general formula I; b and c are integers (b>c) which together with a and d provide the electroneutrality of the double metal cyanide part of the general formula I; e is an integer satisfying the valency state of M.sup.3 ; n and m are integers satisfying the electroneutrality of HE, andw is a number between 0.

Abstract: A method for the recovery of rhodium-triarylphosphine complexes used in the hydroformylation of olefins is described, which comprises contacting an extracted catalyst liquid containing therein a rhodium-triarylphosphine complex with hydrogen in the presence of an alcohol containing 1 to 8 carbon atoms and water to precipitate a hydrogen-coordinated rhodium-triarylphosphine complex, and recovering the precipitated hydrogen atom-coordinated rhodium-triarylphosphine complex from the liquid.

Abstract: A process for producing linear aldehydes or alcohols from olefins using a mixed transition metal hydroformylation catalyst wherein the catalyst comprises a mixture of transition metal compounds wherein the first component is an anionic transition metal catalyst having a charge of at least -2. The formula of the anionic compound is generally defined as M.sup.+n [H.sub.y A.sub.x L.sub.z ].sup.-n wherein A represents Fe, Ru, Os, W, Cr, Co, Rh, Ir or Mo, M is a cationic species, n is an integer greater than or equal to 2, x is an integer greater than or equal to 1, y is an integer greater than or equal to 0 and z is an integer generally corresponding to the number of available coordination bonding sites of A. The second component is a Group VIII compound, preferably a halide or carbonyl of the Group VIII compound. These compounds exhibit high selectivity toward linear products.

Abstract: Process for preparing hydridocarbonyltris(triorganophosphorus) rhodium compounds.

Abstract: A heterogeneous catalyst formed by the steps of:(a) irradiating an organic macromolecular substrate or a metal substrate with ionizing or U.V. radiation in the presence of a monomer selected from the group comprising o-, m-, or p- styryl diphenyl phosphine or o-, m-, or p- phenyl acrylyl diphenyl phosphine to graft the monomer to the substrate, and(b) reacting the graft copolymer with a homogeneous catalyst selected from the group consisting of catalytic metal salts and catalytic organometallic complexes such that the monomer-substrate conjugate becomes a ligand of the catalyst.These catalysts have particular activity in hydrogenation reactions, hydroformylation reactions, isomerization reactions, cracking reactions and dehydrogenation reactions of organic compounds.

Abstract: Olefins are hydroformylated to aldehydes in the presence of a catalytic system comprising a rhodium containing, aqueous solution of certain sulfonated aryl phosphine compounds.

Abstract: An improved process for the preparation of .alpha.-6-deoxytetracyclines and more particularly to the stereo specific hydrogenation of the 6-methylene group of 6-deoxy-6-demethyl-6-methylene-5-hydroxytetracyline and of its 11.alpha.-halo-analog, is described in which the catalyst is the reaction product of a rhodium salt or a complex with a hydrazine or salt thereof.