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WO/1988/005771A1 |
Ketones or aldehydes containing one or more carbon-carbon double bonds and a carbonyl group conjugated with at least one double bond are hydrolyzed by the action of heat and pressure in the presence of water by a batch or continuous proc...
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WO/1988/005770A1 |
2-methyl-3-(3-methylphenyl)-propan-1-ol, 2-methyl-3-(3,5-dimethylphenyl)-propan-1-ol, 1-(3-methylphenyl)-2-methylbutan-3-ol and 1-(3,5-dimethylphenyl)-2-methylbutan-3-ol are disclosed, as well as their production and use as aromatics.
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WO/1988/005035A1 |
The method of forming metal alkoxides and metal powders which consists in the formation and elimination of water or equivalent compounds and the resultant production of a metal alkoxide or metal powder in which particular metal compounds...
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WO/1988/004287A1 |
A process for the production of glycerol from formaldehyde, which process comprises reacting at elevated temperature formaldehyde in a liquid reaction medium with hydrogen in the presence of a catalyst system comprising as essential comp...
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WO/1988/003800A1 |
Methods of using a number of compounds for the inhibition of lipoxygenase in warm blooded animals. Pathological conditions which may be treated by the compounds described herein include psoriasis and other skin disorders involving scalin...
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WO/1988/003436A1 |
The space-time yield and/or the selectivity of the photochemical dimerization of alkanes, ethers, primary and secondary alcohols, phosphine oxides and primary, secondary ant tertiary silanes with Hg and U.V. light is enhanced by refluxin...
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WO/1988/002744A1 |
A method of obtaining methanol consists in passing a synthesis gas, containing carbon oxides and hydrogen, through an immovable layer of a copper-containing catalyst at a temperature of 150-300�C and at a pressure of 3.0-15.0 MPa. The ...
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WO/1988/002745A1 |
A process for producing biphenols by oxidative coupling of phenols, which comprises conducting the reaction in the presence of the same diphenoquinones as those produced as by-products in the oxidative coupling. In a preferable embodimen...
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WO/1988/002361A1 |
Improved process for the acid-catalyzed conversion of a reactant into a reaction product wherein the improvement comprises contacting said reactant with an acid catalyst represented by general formula (I), wherein X is selected from the ...
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WO/1988/002360A1 |
A catalytic process for the hydroformylation of olefinic, sulfur containing thermally cracked petroleum streams to produce aldehydes and/or alcohols. The catalysts are homogeneous transition metal carbonyl complexes. Especially preferred...
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WO/1988/001995A1 |
A process for reducing aldehydes or ketones using a stable and highly active catalyst not soluble in a solvent, easily removable from the reaction system after completion of the reaction, and reusable. This process comprises reacting an ...
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WO/1988/000937A1 |
A process for the co-production of butane-1,4-diol and gamma-butyrolactone which comprises: (a) esterifying maleic anhydride by reaction with an alkyl alcohol to form the corresponding dialkyl maleate; (b) hydrogenating resulting dialkyl...
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WO/1988/000580A1 |
A method of obtaining methanol consists in contacting a gas mix, containing carbon monoxide, carbon dioxide and hydrogen, with a copper-containing catalyst at a temperature of 190-290�C and a pressure of 5-10 MPa in two stages. During ...
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WO/1987/007598A1 |
A continuous process for hydrogenating an unsaturated organic compound to a corresponding hydrogenation product which process comprises: (a) providing a hydrogenation plant comprising first and second hydrogenation zones connected in ser...
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WO/1987/006244A1 |
Process for the conversion of reactant into a reaction product, in the presence of a solid acid catalyst comprising sulfonic acid groups covalently bonded to a polymeric chain, wherein the improvement comprises increasing the rate of con...
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WO/1987/005290A1 |
Styrene and hydroquinone are reacted to produce (1-phenylethyl) hydroquinone of formula (I). The crude (1-phenylethyl) hydroquinone reaction product and unreacted reactants are then vacuum distilled to obtain a fraction consisting primar...
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WO/1987/005015A1 |
Optically active compounds of the cyclohexane series can be used as components of chirally tilted smectic liquid crystal phases.
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WO/1987/005009A1 |
Prepare 3,3',5-tribromo-2,2',6,6'-tetra(primary alkyl)-1,1'-biphenol in high yields by contacting a 3,3',5,5'-tetra-substituted diphenoquinone and a brominating agent under proper reaction conditions.
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WO/1987/004159A1 |
Antitumor cyclohexanone compositions and derivatives thereof, a process of producing the compositions and a method for inhibiting tumors utilizing the compositions. More particularly, the compositions are cyclohexanone and derivatives th...
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WO/1987/002378A1 |
To improve the cracking degree of an installation for continuous cracking of fats comprising in a tubular column counter-flowing currents of ascending fats and falling water, to increase the glycerin concentration and reduce the retentio...
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WO/1987/001700A1 |
A process for producing 2,6-dihydroxynaphthalene from 2,6-diisopropylnaphthalene, which comprises oxidizing 2,6-diisopropylnaphthalene using a specific proportion of a basic compound to thereby hydroxylate or perhydroxylate 2,6-diisoprop...
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WO/1986/007364A1 |
Ring A-diol units suitable for synthesizing 1alpha-hydroxyvitamin D compounds by subsequent condensation with appropriate C/D-ring fragments and to methods for preparing such ring A-diol units.
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WO/1986/005776A1 |
A product mixture containing oligomers of alkenes, ethers and optionally alcohols is prepared by the hydration and oligomerisation of the alkenes by passing the alkenes and water in a molar ratio of alkenes to water of about 3:1 to 90:1 ...
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WO/1986/005484A1 |
Cyclohexane derivatives of formula R1-A1-Z1-A2-R2 in which R1 and R2 in each case are H, an alkyl group with 1-10 C atoms, in which also one or two non-neighboring CH2 groups can be replaced by O atoms and/or -CO groups and/or -CO-O grou...
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WO/1986/004834A1 |
Novel aromatic alkylation catalysts are manufactured by an extended hydrothermal treatment of the precipitation product of a magnesium salt with sodium silicate in the presence of tetrapropylammonium bromide or related compound.
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WO/1986/004055A1 |
A method of obtaining 2-alkyl- or 2.2-dialkyl-1.3-propanediols with the total number of carbon atoms not less than six consists in the reduction of alkyl- or dialkylmalonic ether by boron hydride of sodium in the presence of a metal hali...
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WO/1986/004057A1 |
Higher carbonyl compounds are prepared from C1 to C8 cyclic or acyclic alcohols containing at least one active hydrogen atom bonded to the beta carbon atom or readily convertible thereto under the reaction conditions by reacting the alco...
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WO/1986/004056A1 |
Propanol derivatives of formula (I), wherein X is a leaving group; R1 is H or a protecting group; and R2 is H, and R3 is a group -CH2Y wherein Y is a leaving group; or R2 and R3 together form =CH2. The propanol derivatives of the formula...
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WO/1986/003737A1 |
New tricyclo AD5.2.1.02,6 BD decane/decene derivatives having the formula (I) wherein Rd, in the case where Rd = -CH3, is in position C7 or C8, the dotted lines between C3 and C4 and C4 and C5 represent either two single C-C bonds or a C...
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WO/1986/003686A1 |
An improved method for the bulk drying of water-containing organic feedstocks by means of selective adsorption of the water in fixed molecular sieve beds wherein the improvement comprises integrating a series of at least four fixed adsor...
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WO/1986/003488A1 |
Compounds of formula (I), wherein R is hydrogen or primary or secondary C1-6alkyl, R1 is primary or secondary C1-6alkyl or R and R1 together are (CH2)m or (Z)-CH2-CH=CH-CH2- wherein m is 2, 3, 4, 5 or 6, Ro is C1-6alkyl, C3-7cycloalkyl o...
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WO/1986/003196A1 |
Methyl substituted bicyclo AD2.2.1 BDheptan nitriles of the general formula (A), wherein the methyl group occupies the position C-4 or C-5, the residue R1 is at C-2 and the nitrile group is at C-3 or alternately the residue R1 is at C-3 ...
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WO/1986/003190A1 |
A process for preparing methanol in a liquid reaction medium by reaction of carbon monoxide and hydrogen in the presence of a catalyst system consisting of an alkali metal alcoholate and a copper catalyst, wherein the liquid reaction med...
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WO/1986/003189A1 |
Butane-1,4-diol is produced by vapour phase hydrogenolysis of an alkyl ester of a C4 dicarboxylic acid, e.g. diethyl maleate, over a reduced Cu-Cr or Cu-Zn mixed oxide catalyst. Two adiabatic hydrogenolysis zones are used. The mixture ex...
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WO/1986/003191A1 |
Methyl substituted bicyclo AD2.2.1 BD heptane/heptene methylol derivatives of general formula (A), wherein the methyl group occupies the position C-4 or C-5, the residue R1 the position C-2 and the methylol residue the position C-3 or al...
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WO/1986/000886A1 |
A general method for producing methylol compounds by the reaction of an organometallic compound with formaldehyde in which the formaldehyde is generated in situ from and by the use of a high molecular weight linear formaldehyde homopolymer.
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WO/1986/000320A1 |
Linear thermoplastic polycarbonates derived from: (i) a carbonate precursor; and (ii) at least one dihydric phenol represented by the general formula (I), wherein R is independently selected from hydrogen and lower alkyl radicals, R' is ...
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WO/1985/005355A1 |
Process for the preparation of an aromatic hydrocarbon with a cyclobutene ring fused to the aromatic hydrocarbon which comprises, dissolving an ortho-alkyl halomethyl aromatic hydrocarbon in an inert solvent and pyrolyzing the solution o...
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WO/1985/004820A1 |
A reactor to be used for the exothermic reaction of a mixed gas consisting of a plurality of elements in the presence of a solid catalyst. Conventional reactors of the kind described above involve the problems that it is difficult to mai...
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WO/1985/004406A1 |
Novel vicinal dioxyalkylene organometalates comprising a cation having hydrocarbyl-containing substituent. The vicinal dioxyalkylene organometalates can be reacted with water to yield alkylene glycols.
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WO/1985/004392A1 |
In processes for the hydrolysis of alkylene oxide to form alkylene glycols in the presence of selectivity-enhancing organometalate the organometalate is provided in a water-insoluble phase, a stabilizing material is used to enhance the s...
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WO/1985/004393A1 |
Alkylene glycols are produced by the reaction of alkylene oxide with water in the presence of a metalate-containing solid wherein the metalate is in association with electropositive complexing sites on a solid support such as an anion ex...
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WO/1985/003712A1 |
Melt spinnable, liquid crystal aromatic polyesters which are optically anisotropic in the melt phase, comprising recurring moieties of formulas (I) and (II) and moiety (III) of (IV) wherein (III) is $(5,)$ and wherein (IV) is $(5,)$ wher...
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WO/1985/003286A1 |
A process for the hydrogenation of an aldehyde or a ketone comprises reacting the aldehyde or ketone with methanol in the presence of a platinum group metal catalyst. During the reaction methanol acts as a hydrogen donor and produces for...
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WO/1985/003202A1 |
Terminally sterilizable drug compositions are prepared using glycerol as an isotonic agent in solution with heparin, gentamicin, dopamine or cimetidine.
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WO/1985/003288A1 |
Methyl formate is prepared by reacting methanol with a hydrogen acceptor at elevated temperature in the presence of a platinum group metal catalyst. The hydrogen acceptor, which includes species such as aldehydes, ketones and olefins und...
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WO/1985/003073A1 |
Process for producing, selectively, predominantly C1 - C5 linear, primary alcohols by reacting carbon monoxide and hydrogen in the presence of a solid catalyst consisting essentially of molybdenum sulfide and at least about 0.20 mole, pe...
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WO/1985/002178A1 |
p-alkenyl phenols are prepared by reacting an alkylated phenol having a replaceable hydrogen atom at the 4- position with an aliphatic aldehyde having two carbon atoms up to at least 20 carbon atoms in the molecule and a secondary amine;...
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WO/1985/002175A1 |
Novel, liquid mixtures of isomeric aldehydes and alcohols are described in the C11-C16 carbon range, the compounds being characterized by a main carbon branched at the position and moderate additional branching in most isomers; the aldeh...
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WO/1984/004297A1 |
Esters are converted to alcohols by vapour phase hydrogenation over Ru, Ni or Rh, a Group IA, IIA, lanthanide or actinide promoter, and a carbon support of defined surface area characteristics.
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