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Matches 651 - 700 out of 3,724

Document Document Title
WO/1995/018114A1
Benzoxazine derivatives of formula (I), wherein R1 and R2 independently represent an alkyl group with 1 to 3 carbon atoms, or a group of formula -CH2-ORa, wherein Ra is a hydrogen atom or a methyl group; Rx is: an alkyl group with 1 to 3...  
WO/1995/016060A1
Alkoxy technology is used to prepare composite ceramic materials. The starting compounds for the composite ceramic materials comprise metal alcoholates. The starting alcoholates are prepared by electrode dissolution of metals in a corres...  
WO/1995/003438A1
A method for electrolytically reducing carbon dioxide in a CO2-saturated aqueous saline solution with a neutral to slightly alkaline pH and in the presence of a copper or silver cathode, wherein the cathode is electrochemically activated...  
WO/1995/001467A1
A process for preparing perfluoroalkanesulfonyl fluorides, e.g., perfluoromethanesulfonyl fluoride, comprises electrochemically fluroinating in the presence of anhydrous hydrogen fluoride at least one precursor compound selected from the...  
WO/1995/000683A1
Group 4 metal complexes useful as addition polymerization catalysts are prepared by electrolysis of cyclopentadienyl metal complexes under inert electrolysis conditions.  
WO/1994/029498A1
A process for producing 1,4-dihydroperfluorobutane through decarboxylating dimerization of an alkali metal 2,2,3,3,-tetrafluoropropionate by electrolytically oxidizing the salt on a platinum anode in a solvent comprising at least one of ...  
WO/1994/026770A1
There is disclosed a selective electrosynthetic method for the modification of one or more pendant R groups in a polypeptide molecule. The method comprises applying an electric potential to a dispersion or solution of the polypeptide mol...  
WO/1994/024335A1
A process is described for preparing organic and inorganic hydroxides and alkoxides from the corresponding halides in an electrolytic cell which comprises an anolyte compartment containing an anode, a catholyte compartment containing a c...  
WO/1994/022889A1
A copolymer of general formula (I), wherein unit A is a monomer of an electronically conductive polymer, unit B is a nucleotide, an oligonucleotide or an analogue thereof, x, y, z are integers of 1 or higher or y is 0, and l is a covalen...  
WO/1994/022176A1
Storage of hydrogen and electrical energy is achieved through the electrochemical hydrogenation of a fullerene. The hydrogenation is carried out in an electrochemical cell comprising a body of proton donor electrolyte (102) in effective ...  
WO/1994/013857A1
A process for the production of a compound of the formula: R-On-(R1)m-CHF2 wherein R is hydrogen or a fluorine containing C1-4 alkyl group, R1 is an optionally fluorinated methylene group, and m and n are independently 0 or 1 provided th...  
WO/1994/011547A1
Process for the electrochemical preparation of taxane derivatives of general formula (I), based on a taxane derivative of general formula (III). The invention also concerns pharmaceutical compositions with outstanding antitumour and anti...  
WO/1994/008984A1
Novel taxane derivatives of general formula (I), their preparation by electrochemical reduction of a taxane derivative of general formula (III) and pharmaceutical compositions containing a product of general formula (I) in which R3 is a ...  
WO/1993/025514A1
Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentia...  
WO/1993/025299A1
The invention concerns the electrochemical preparation of dicarboxylic acids by subjecting an aqueous solution containing essentially the alkali-metal salt of a dicarboxylic acid of the general formula (I): HOOC-(CH¿2?)¿n?-COOH, in whi...  
WO/1993/025513A1
Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentia...  
WO1993018209A3  
WO/1993/022480A1
A method of electrochemically patterning a surface comprises providing an electrolyte overlying the surface and an array of electrodes adjacent the surface and in contact with the electrolyte, and altering the potential of one or more el...  
WO/1993/018210A1
Process for electrochemical preparation of taxane derivatives of general formula (I) based on a product of general formula (II). In general formula (I), Ar denotes an aryl radical, R1 is a benzoyl radical or R2-O-CO- radical in which R2 ...  
WO/1993/018209A2
Formaldehyde and/or methylal are made by the electrooxidation of methanol in an apparatus which is divided into the anode compartment and the cathode compartment by a cationic membrane made of a fluoropolymer and having pendant fluorosul...  
WO/1993/018208A1
An integrated process for oxidizing aromatic and alkyl aromatic compounds to form carbonyl containing reaction products comprising the reaction of quadravalent cerium with a reactant stream containing an aromatic or alkyl aromatic compou...  
WO/1993/017151A1
A process is disclosed for preparing glyoxylic acid by electrochemical reduction of oxalic acid in an aqueous solution within divided or non-divided electrolytic cells. The cathode is composed of carbon or of at least 50 % by weight of a...  
WO/1993/017150A1
A process is disclosed in wich optically active glycols are produced through an electrolytic asymmetric dihydroxylation (ADH) reaction involving olefins as substrates. The ADH reaction is mediated by a catalytically active amount of osmi...  
WO/1993/011067A1
The present invention relates to new compositions of matter having the formula AnCx, wherein A is a monovalent cation and Cx is a fullerene anion, preferably wherein x is equal to 60 and 70. The present invention also relates to a proces...  
WO/1993/003815A1
The present invention relates to the direct electrolysis of tall oil soap (TOS) to produce crude tall oil (CTO). An aqueous tall oil soap solution (22) generated in a kraft wood-pulping process is placed in contact with an anode (34) in ...  
WO/1993/003355A1
A device is described for sensing volatile materials, the device comprising: a) a plurality of sensors each comprising a pair of spaced-apart electrical contacts (12) and a semi-conductor polymer extending between the contacts, wherein t...  
WO1992017626A3  
WO/1993/002230A1
Described are processes for producing amines from nitriles. The processes include electrocatalytic hydrogenation of nitriles in the presence of transition metal-oxide and/or transition metal-hydroxide cathodes to thereby form amines. Pre...  
WO/1992/021019A1
An electrolytic cell (10) for the labeling of proteins, peptides and other organic molecules employs a cathodic half cell (12) and an anodic half cell (14) where a porous working electrode (28) is located in one half cell and a counter e...  
WO1992007648A3  
WO/1992/017626A2
Electrochemical process for preparing diaryliodonium salts using a single compartment and a carbon anode. The process has high current efficiency and, optionally, increased para, para' regioselectivity. The process proceeds in the presen...  
WO/1992/016532A1
A halogenated beta-lactam compound represented by general formula (III), wherein Ar represents optionally substituted aryl; R1 represents optionally protected amino; R2 represents hydrogen or a carboxyl blocking group; R3 represents hydr...  
WO/1992/012931A1
An apparatus and method for direct oxidation of organic material such as organic wastes. The apparatus comprises an electrocell (10) divided by an aluminum frit barrier (16) into an anode compartment (22) with a carbon felt anode (12), a...  
WO/1992/013117A1
Potentially hazardous compositions containing solid combustible fuels, oxidants, nitro-containing, nitramine-containing or nitrato-containing compounds and, in many cases, binders are desensitized by electrolysis at low current and over ...  
WO/1992/009603A1
Polycyclic diamines, incorporating a basic framework similar to [3.3.3]propellane, and derivatives of the basic polycyclic diamines and a process for preparing same are provided. The diamines are prepared by subjecting bispyridine compou...  
WO/1992/009552A1
Process for preparing alpha-arylpropionic acids by catalytically asymmetrically hydrogenating alpha-arylpropenoic acids prepared from alpha-aryl ketones.  
WO/1992/007648A2
A preferred electrochemical process for producing an alcohol or carboxylic acid from a corresponding metal salt while also recovering metal cation residues is described. The preferred process does not require a three-compartment desalina...  
WO/1992/005142A1
A process for preparing tertiary perfluoroamines is provided. The process comprises electrochemically fluorinating a tertiary thioamide precursor, said thioamide precursor having at least one thioamide moiety, see formula (I), and termin...  
WO/1992/005299A1
A process is disclosed for producing by electrolytic reduction compounds having formula (I), in which R?1¿ is a fluorine atom, a methyl or a deuteromethyl group; R?2¿ and R?3¿ are the same or different and represent a fluorine, chlori...  
WO/1992/000957A1
A method for preparing deferoxamine and a composition of formula (I): X-Ph-CH¿2?-O-C(O)-NH-(CH¿2?)¿4?-CH=NOR, wherein X is a C¿1?-C¿4? alkyl, -O(C¿1?-C¿4? alkyl), a halogen or hydrogen; R is X-Ph-CH¿2?- or hydrogen for preparing ...  
WO/1992/000403A1
An electrochemical oxidation of a pi-deficient N-heterocyclic precursor compound having an oxidizable organic group attached by a carbon-to-carbon linkage. This precursor compound is at least sparingly water soluble. The preferred electr...  
WO1991019020A3  
WO/1991/019832A1
Method for producing glyoxylic acid by electroreduction, with cathodic reactivation, of oxalic acid in a divided eletrolytic cell comprised of an anodic compartment formed of an anode and an aqueous solution of a strong mineral acid as a...  
WO/1991/019774A1
An electrocatalytic process for hydrogenating an unsaturated fatty acid, triglyceride, or mixtures thereof as an oil or fat is carried out using a high surface area, low hydrogen overvoltage catalytic material used as the cathode. The so...  
WO/1991/019020A2
A process in which an electrochemical cell is used to simultaneously conduct a product synthesis and purification while also regenerating conductive material. The improved process is applied to an electrochemical synthesis which is condu...  
WO/1991/018132A1
The invention relates to a high yield process for the preparation of optically active substituted 1,4-diols with a high degree of enantiomeric purity comprising the electrolytic coupling of optically active beta hydroxycarboxylic acids w...  
WO/1991/015615A1
Process for the electrolytic production of quaternary ammonium hydroxides and alkoxides of formula (I): R1R2R3R4N+(OY)-, wherein R1, R2, R3 and R4 may be similar or different and represent an alkyl, phenyl or benzyl group optionally subs...  
WO/1991/015616A1
A method for preparing perfluoropolyether oligomers comprising electrochemical coupling of perfluorocarboxylic acid salts or mixtures thereof in aqueous methanol under controlled conditions to produce perfluoropolyether oligomers.  
WO1991003442A3  
WO/1991/003442A2
In a process for separating mixtures of partially fluorinated or perfluorinated hydrocarbon compounds which possibly contain other chain members from the group of heteroatoms: nitrogen, oxygen, boron, phosphorus and sulphur and/or can be...  

Matches 651 - 700 out of 3,724