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4290918 |
Soluble polymerization catalysts, production of the same and their use
Soluble catalysts for polymerizations are provided which are formed from an organic polymeric material containing at least one functional group bound to a metal, metal ion or metal complex. These...
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4276409 |
Layered cyano end terminated organophosphorus inorganic polymers
Cyano-organophosphorus compounds react by a metathesis reaction in a liquid medium with tetravalent metal ions yielding layered crystalline to amorphous inorganic polymers having the empirical...
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4251452 |
Manganese (II) complexes
Compounds of formula I are useful in the separation of a gas such as oxygen, hydrogen, sulphur dioxide, alkenes and carbon monoxide from a fluid comprising the gas. Mn II LX 2 ...
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4248720 |
Organo molybdenum friction-reducing antiwear additives
A hydrocarbon-soluble molybdenum complex of a hydrocarbon substituted thio-bis-phenol, e.g. the reaction product of 1-2 moles of nonyl phenol sulfides and one mole of molybdenum oxide (reacted if...
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4231950 |
Yellow azomethine dye developers
Novel yellow ortho, ortho' dihydroxy azomethine dyes and metal complexes of such dyes which are particularly useful in photographic products and processes are presented by this invention. The novel...
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4229606 |
1,7-Octadiene process
A process for preparing 1,7-octadiene by hydrodimerizing butadiene which comprises reacting the butadiene in the presence of formic acid, or a salt thereof, optionally a solvent and a catalyst...
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4215066 |
Binuclear rhodium complex as a hydroformylation and hydrogenation catalyst
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...
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4201683 |
Alkanol solutions of organo molybdenum complexes as friction reducing antiwear additives
A solution of a hydrocarbon-soluble organo molybdenum complex obtained as the solution reaction product of a hydrocarbyl substituted thio-bis-phenol, e.g. 2,2 1 -thio-bis (4-iso-nonyl phenol),...
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4196135 |
Palladium complex
The palladium complex disclosed herein is bis[tri(orthotolyl)phosphine] palladium which is produced by reacting a palladium salt with tri(ortho-tolyl)phosphine and reducing the resultant...
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4192757 |
Alkyl phenol solutions of organo molybdenum complexes as friction reducing antiwear additives
A solution of a hydrocarbon-soluble organo molybdenum complex obtained as the solution reaction product of a hydrocarbyl substituted thio-bis-phenol, e.g. 2,2 1 -thio-bis(4-iso-nonyl phenol), with...
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4190595 |
Process for dehalogenating the metal-halide bond in a low valent group VIII metal halide complex
A novel process is described for preparing low valent Group VIII metal hydrides, useful as catalysts in the hydrogenation of a large variety of organic compounds, in which a low valent Group VIII...
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4189403 |
Catalyst for cyclodimerization of isoprene
1,5-Dimethyl-1,5-cyclooctadiene and 1,4-dimethyl-4-vinyl-1-cyclohexene are prepared by contacting isoprene with a catalyst obtained by mixing a nickel compound, a reducing agent capable of reducing...
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4187241 |
Metal phosphine complex
Novel Group IB and IIB metal phosphine complexes are disclosed. These complexes are reacted with rhodium complex precursors to form useful enantioselective hydrogenation catalysts. Also disclosed...
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4180386 |
Hexacoordinated transition metal compounds containing at least one polyfluoroalkyl substituent
Hexacoordinated transition metal compounds, useful as antiknocks, having the structure ##STR1## wherein M is a divalent metal selected from the group Mn, Fe, Co and Ni, L 1 and L 2 are the...
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4174447 |
Process for dimerization, arylation and trifluoromethylation of aromatic and heterocyclic compounds
A decarboxylation process for coupling aromatic compounds wherein cyclic hydrocarbons and heterocyclic compounds having at least one labile ring hydrogen are reacted with the mono silver salts of...
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4173590 |
Process for making tetramethyldiphosphinomethane
Novel chemical compounds which comprise tetramethyldiphosphinomethane of the formula: (CH 3 ) 2 P--CH 2 --P(CH 3 ) 2 and methyllithium-dimethylphosphine of the formula: LiCH 2 --P(CH 3 ) 2 ,...
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4152118 |
Copper mercaptides as sulfur dioxide indicators
Organophosphine copper(I) mercaptide complexes are useful as convenient and semiquantitative visual sulfur dioxide gas indicators. The air-stable complexes form 1:1 adducts in the presence of low...
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4147710 |
Compounds containing phosphorous and a method for making polycarbodiimide foams with the compounds as a catalyst
A compound adapted to be used to advantage as a catalyst for making carbodiimide foams is prepared by a process wherein (a) a phosphetane oxide or phosphetane sulphide of the general Formulae I and...
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4145358 |
Preparation of organophosphorus nickel complexes
The preparation and use of bis(μ-diphenylphosphido)tris(triethylphosphine)dinickel and tris(triethylphosphine)(triphenylphosphine)nickel is disclosed.
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4144259 |
Organophosphorus nickel complexes and use thereof
The preparation and use of bis(μ-diphenylphosphido)tris(triethylphosphine)dinickel and tris(triethylphosphine)(triphenylphosphine)nickel is disclosed.
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4127612 |
19-Hydroxy PGE.sub.1 carbinol analogues
19-Hydroxy carbinol analogues of PGE 1 having the structure ##STR1## are disclosed as bronchodilators. Methods of preparing the analogues are also disclosed.
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4124533 |
Metal coordination complexes containing optically active phosphine or arsine ligands
Process for the homogeneous catalytic hydrogenation of β-substituted-α-acylamido-acrylic acids which yields, after hydrogenation, an optically active mixture. The process comprises the...
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4124456 |
Method of tris(perfluoroalkyl)phosphine oxides
Novel compounds, viz., tris(perfluoroalkyl)phosphine oxides have the following general formula ##STR1## where R F is a perfluoroalkyl of normal and iso-structure, having from 2 to 8 carbon atoms....
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4120882 |
Metal complexes
Complexes of nickel or cobalt with phosphine, phosphite, stilbene or arsine ligands, especially nickel-phosphine complexes, useful as catalysts.
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4118408 |
Organophosphorus nickel complexes and preparation thereof
The preparation and use of bis(μ-diphenylphosphido)tris(triethylphosphine)dinickel and tris(triethylphosphine)(triphenylphosphine)nickel is disclosed.
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4115420 |
Catalytic conversion of thallium (I) to thallium (III)
A monovalent thallium compound is converted to a trivalent thallium compound by treating the thallium (I) compound with molecular oxygen in the presence of a Group VIII noble metal catalyst to...
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4101566 |
Oxidative addition production of trans-halo-2(1,3-alkadienyl)bis(triethylphosphine) complexes of nickel(II), palladium(II), and platinum(II)
The production of trans-halo-2(1,3-alkadienyl)bis(triethylphosphine) complexes of nickel(II), palladium(II), and platinum(II) by oxidative addition is disclosed.
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4098807 |
Platinum and palladium complexes
A method of preparing bis(cis,cis-cyclo-octa-1,5 diene) platinum and palladium by reducing [Pt Cl 2 (1,5-C 8 H 12 )] or [Pd Cl 2 (1,5-C 8 H 12 )] in the presence of a solvent not having an...
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4055582 |
Synthesis of nickel and palladium organophosphorus complexes
A process is disclosed comprising reacting at least one compound of the formula RMX(PR 3 ) 2 and at least one compound of the formula APR 2 to produce at least one composition which can be...
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4052484 |
Substituted cyclic phosphine oxides
A cyclic phosphine oxide of the formula ##STR1## in which R 1 is an alkyl or an aryl radical having up to 14 carbon atoms, R 2 , r 3 and R 4 each independently is a C 1 -C 4 -alkyl radical,...
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4020108 |
Selective hydrogenation of unsaturated compounds
In a process for the catalytic hydrogenation of unsaturated compounds, which process is characterizable as employing for the active catalyst a glyoxime complexed with cobalt and a base, referred to...
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4012399 |
Transition metal complexes with trivalent phosphorus compounds
Ultraviolet light absorbers and stabilizers, particularly for monolefin polymers, are provided from metal complexes of trivalent phosphorus compounds of the formulae Me (L) n (A) m (L') o where...
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3933878 |
Ligand complexes of cu(1)salts
Novel compositions of matter herein are claimed and may be represented by the general formula CuA.L, where CuA is a Cu(I) salt of medium to strong Bronsted acids and L is a ligand chosen from a...
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3931059 |
Process for preparing polycarbodiimide foams in the presence of phosphetane oxide or sulfide adducts
A compound adapted to be used to advantage as a catalyst for making carbodiimide foams is prepared by a process wherein A. a phosphetane oxide or phosphetane sulphide of the general Formulae I and...
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3928477 |
Production of phenols from decomposition of aromatic hydroperoxides
Phenols are prepared by decomposing aromatic organic hydroperoxides in the presence of a metal complex containing the grouping ##SPC1## Wherein M is a metal atom having a co-ordination number of at...
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3901939 |
Process for the preparation of organic compounds
A process for preparing dimerization products having the formula X -- (A) 2 -- X in which A is a divalent radical such as --CH 2 --, and X is a functional group such as --NO 2 , wherein a...
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3891684 |
Preparation of organometallic complexes
A process for the preparation of palladium and platinum organometallic complexes in the zerovalent state is described. The process comprises contacting a palladium or platinum compound containing...
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3859337 |
ETHYLENEDIAMINETETRAACETIC ACID ANHYDRIDE DERIVATIVES
Novel derivatives of ethylenediaminetetraacetic acid anhydride are provided and such derivatives are obtained by directly reacting the anhydride with compounds having a hydrogen atom replaceable by...
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3859092 |
PHOTOGRAPHIC SYSTEMS BASED ON PHOTOSENSITIVE COPPER (I) COMPLEXES
In a process of forming an image in a light sensitive material employing a chemical developer or physical developer, certain actinic light sensitive copper (I) complexes provide stable latent...
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3853754 |
MEMBRANE SEPARATION OF HOMOGENEOUS CATALYSTS FROM NITRILE SOLUTIONS
Asymmetric aromatic polyamide and aromatic polyimide membranes are used in the reverse osmosis separation of a metalorgano complex catalyst from an organic solution containing a mixture of such...
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3800000 |
PROCESS FOR RECOVERING A NICKEL(0) OLIGOMERIZATION CATALYST IN THE FORM OF A NICKEL(II) DIMERIZATION CATALYST
An integrated process is provided wherein a nickel(0) complex-catalyzed oligomerization and a nickel(II) complex-catalyzed dimerization are coordinated such that the nickel(0) oligomerization...
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3728366 |
LIQUID/LIQUID EXTRACTION OF COBALT VALUES
Selective extraction of cobalt from alkaline aqueous solutions of its salts with organic solutions of lower diphenylphosphinocarboxylic acids and their oxides is disclosed.
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3725489 |
HYDROGENATION OF ALKENES EMPLOYING AN ORGANOMETALLIC HYDROGENATION CATALYST
Complexes of rhodium, ruthenium, platinum, palladium, osmium, or iridium with polymers of the structure: ##SPC1## Wherein Q is phosphorous, arsenic or antimony, and wherein R 1 , R 2 , R 3 , and R...
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3718680 |
PHOSPHINE OR PHOSPHITE GOLD COMPLEXES OF THIOETHANOL AND DERIVATIVES THEREOF
Phosphine or phosphite gold complexes of thioethanol and derivatives thereof, such as ether or ester derivatives, having anti-arthritic activity are prepared by reaction of an appropriate phosphine...
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3718679 |
PHOSPHINE OR PHOSPHITE GOLD COMPLEXES OF THIOMALIC ACID
Phosphine or phosphite gold complexes of thiomalic acid having anti-arthritic activity are prepared by reaction of an appropriate phosphine or phosphite gold halide with thiomalic acid.
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3676481 |
CATALYTIC ISOMERIZATION OF 2-METHYL-3-BUTENENITRILE TO LINEAR PENTENENITRILES IN THE PRESENCE OF CERTAIN METAL SALT AND/OR TRI(HYDROCARBYL)BORON PROMOTERS
The present invention discloses the isomerization of 2-methyl-3-butenenitrile to linear pentenenitriles in high yield by means of catalysts which comprise zero-valent nickel complexes promoted by...
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3673285 |
PREPARATION OF VINYL ORGANO-PHOSPHOROUS COMPOUNDS
Compounds containing a P--H bond add to hydrocarbon acetylenic unsaturation in the presence of metal coordinating catalysts selected from Groups VIA and VIII of the Periodic Table, to produce...
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3671560 |
MANUFACTURE OF PALLADIUM OR PLATINUM-CONTAINING COMPOUNDS
Compounds of the formula M(Z 3 P) 4 , where M is palladium or platinum and Z is a hydrocarbon or substituted hydrocarbon radical, are produced by reacting the metal in elemental form with a...
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3668086 |
ELECTROCHEMICAL GENERATION OF SOLUBLE NICKEL(O) CATALYSTS
A method of generating soluble zero-valent nickel catalyst consisting of electrochemically reducing suitable nickel(II)-ligand complexes wherein said electrochemical reduction can be achieved with...
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3536748 |
CATALYTIC ISOMERIZATION OF 2-METHYL-3-BUTENENITRILE TO LINEAR PENTENENITRILES
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