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JP5506140B2 |
The present invention relates to a solid base catalyst including 10.0%-30.0% by weight of calcium oxide and 70.0%-90.0% by weight of zirconium oxide, in which the calcium source is CaCl2 or Ca(NO3)2, and the Zirconium source is ZrOCl2 or...
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JP5508278B2 |
The invention relates to a process for production of diaryl carbonate combined with the electrolysis of the resultant alkali metal chloride-containing process wastewater. The process according to the invention makes possible, inter alia,...
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JP2014070059A |
To provide radical polymerization sensitizers consisting only of carbon, hydrogen and oxygen atoms.Provided are 9-(substituted carbonyloxy) anthracene compounds represented by the specified general formula (1), and radical polymerization...
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JP5474565B2 |
An alkanediol and a dialkyl carbonate are prepared in a process comprising: (a) reacting an alkylene carbonate and an alkanol feedstock in a reaction zone under transesterification conditions to obtain a product mixture of dialkyl carbon...
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JP5475345B2 |
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JP5464145B2 |
An asymmetric chain carbonate can be produced in a single-step reaction comprising a step of reacting methyl nitrite, carbon monoxide, and 0.05-1.5 moles of an aliphatic alcohol having 2-6 carbon atoms or an alicyclic alcohol having 5-6 ...
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JP5458352B2 |
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JP5458891B2 |
The present invention is to provide a novel production process capable of selectively producing various kinds of carbonate compounds without any inhibition in high yields without using phosgene and without producing hydrogen chloride as ...
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JP5443170B2 |
The invention relates to a process for the preparation of a diaryl carbonate by transesterification of an aromatic alcohol with a dialkyl carbonate in the presence of a transesterification catalyst during a period of time [ta], in which ...
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JP5402646B2 |
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JP5392502B2 |
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JP5379149B2 |
Provided is a method for producing a tetrafluoro nitrogen-containing heterocyclic compound such as tetrafluoropyrrolidine in good yield and at low cost. The method comprises the steps of: (A) reacting a compound represented by the formul...
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JP5371422B2 |
Compounds of the general formula I (variables defined herein) and processes for making compounds including 2,6 -naphthyl radicals are provided. Polymerizable or nonpolymerizable liquid-crystalline compositions including one or more compo...
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JP5362223B2 |
It is an object of the present invention to provide a specific process that enables a high-purity diphenyl carbonate required for producing a high-quality high-performance aromatic polycarbonate to be produced industrially in a large amo...
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JP5362331B2 |
Method for purifying diarylcarbonate in at least one distillation column, which contains at least one reinforcement part in the upper part of the column and at least one output part in the lower part of the column, comprises producing di...
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JP5350465B2 |
The invention relates to a process for the preparation of an alkanediol and a dialkyl carbonate comprising: (a) reacting an alkylene carbonate and an alkanol at a temperature of from 10 to 200° C., at a pressure of from 5×104 to 5×106...
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JP5350270B2 |
An alkanediol and a dialkyl carbonate are prepared in a process comprising: (a) reacting an alkylene carbonate and an alkanol feedstock in a first reaction zone under transesterification conditions to obtain a product mixture of dialkyl ...
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JP5348865B2 |
Producing diaryl carbonates comprises producing phosgene by reacting chlorine with carbon monoxide; reacting the phosgene with a monophenol in the presence of a base to form a diaryl carbonate and an alkali metal chloride solution (S1); ...
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JP2013541533A |
A continuous process for generation of phosgene from CO and Cl2 and consumption of the phosgene thus generated in a liquid-phase reaction so as to form organic products P. The process is implemented in two successive reactors R1 and R2, ...
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JP5333711B2 |
To provide an industrial production method of a hydrocarbon oxycarbonyl oxyalkanoic ester compound, easily yielding the target compound, i.e. the hydrocarbon oxycarbonyl oxyalkanoic ester compound of formula (III), in a high yield. The h...
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JP5322658B2 |
An alkanediol and a dialkyl carbonate are prepared in a process comprising: (a) contacting an alkylene carbonate with an alkanol feedstock under transesterification conditions in a reactive distillation zone to obtain a top stream compri...
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JP5306816B2 |
The method of reactivating a solid catalyst composition selected from the group consisting of oxides, hydroxides, oxyhydroxides or alkoxides of two to four elements from Group IV, V and VI of the Periodic Table supported on porous materi...
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JP5302291B2 |
The invention relates to a process for preparing carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs metal-catalyzed coupling reactions to pr...
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JP5292710B2 |
Disclosed is a method for continuously producing a diaryl carbonate having excellent safety by using a reaction column. Specifically disclosed is a method for continuously producing a diaryl carbonate by supplying an aromatic hydroxy com...
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JP5295127B2 |
Diaryl carbonate is prepared by reaction of an aromatic alcohol with a dialkyl carbonate, which dialkyl carbonate has been prepared by the reaction of an alkanol and an alkylene carbonate.
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JP5257201B2 |
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JP5256687B2 |
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JP5252424B2 |
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JP5230226B2 |
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JP5228449B2 |
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JP2013521119A |
A catalyst for the epoxidation of an olefin comprising a carrier and, deposited thereon, silver, a rhenium promoter, a first co-promoter, and a second co-promoter; wherein the quantity of the rhenium promoter deposited on the carrier is ...
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JP2013513633A |
The invention relates to bimetallic complexes in which the ligand contains a salophen unit which complexes copper, manganese or cobalt and a phenanthroline unit which complexes palladium and the two systems are linked by a continuous con...
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JP2013063965A |
To provide an effective process for production of a dialkyl oxalate or/and a dialkyl carbonate, and an apparatus for production thereof.The process for production of the dialkyl oxalate or/and the dialkyl carbonate includes a first step ...
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JP5174682B2 |
An alkylene carbonate and an alkanol are subjected to transesterification to yield a dialkyl carbonate and alkanediol in a process comprising (a) introducing the alkylene carbonate and an alkanol feedstock into a reaction zone to react i...
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JP5153802B2 |
A method is provided for carrying out depolymerization of a polymer containing electrophilic linkages in the presence of a catalyst and a nucleophilic reagent, wherein production of undesirable byproducts resulting from polymer degradati...
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JP2013505921A |
Difluoroethylene carbonate, trifluoroethylene and tetrafluoroethylene carbonate are produced by the reaction between elemental fluorine and ethylene carbonate or fluorinated ethylene carbonates with a lower degree of fluorination.
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JP2013505918A |
A process for the manufacture of fluoroethylene carbonate or difluoroethylene carbonate by reaction of ethylene carbonate and F2 or for the manufacture of fluoromethyl methyl carbonate or difluorinated dimethyl carbonate by reaction of d...
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JP5125834B2 |
To make various allyl compounds efficiently producible by using a new catalyst system exhibiting sufficiently high activity to oxygen nucleophilic agents low in reactivity when reacting an allyl starting material compound with an oxygen ...
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JP5119703B2 |
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JP5097380B2 |
To provide an adamantane derivative as a new polymerizable monomer having an alicyclic structure and an acidolyzable site, useful as a monomer for functional resins including photosensitive resins in the field of photo-lithography, and t...
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JP2012236806A |
To provide a method for efficiently producing a carbonic ester compound in the presence of a catalyst from an aliphatic alcohol compound, carbon monoxide and oxygen.This method for producing the carbonic ester compound by reacting an ali...
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JP5089601B2 |
Diphenyl carbonate is produced by reacting phenol with diethyl carbonate in a series of fixed bed reactors each of which is connected at different position on a distillation column via side draw and return streams. The composition of mat...
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JPWO2010140572A1 |
In the present invention, in the presence of a catalyst, a compound represented by the following formula (1) is reacted with a compound having one phenolic hydroxyl group or a compound having two or more phenolic hydroxyl groups to have ...
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JP5074481B2 |
By using protonic acids, diesters of dicarbonic acid may be stabilized against thermal and chemical decomposition over a relatively long period. Mixtures of diesters of dicarbonic acid and protonic acids are outstandingly suitable for pr...
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JP5074213B2 |
It is an object of the present invention to provide a specific apparatus and process for producing a diol by taking a cyclic carbonate and an aliphatic monohydric alcohol as starting materials, continuously feeding the starting materials...
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JP2012214723A |
To provide a polycarbonate diol useful as a raw material of polyurethane and a thermoplastic elastomer or the like, and excellent in thermal stability and hydrolysis resistance.The novel poly (branched-chain alkylene) carbonate diol uses...
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JP5069793B2 |
The present invention provides a process for producing : a compound represented by XOR 2 ; a dialkyl tin dialkoxide compound having one tin atom, two Sn-R 1 bonds and two Sn-OR 2 bonds; and/or a tetraalkyl dialkoxy distannoxane compound ...
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JP5069855B2 |
To provide an alicyclic olefin polyvalent carbonate compound having a molecular weight distribution. This method for producing the alicyclic olefin polyvalent carbonate compound is characterized by performing an ester-interchange reactio...
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JP5049037B2 |
A carbonic acid ester is provided that is represented by the formula below and has a melting point of no greater than 0° C. (In the formula, R1 and R2 independently denote a saturated hydrocarbon group, R1 is a branched chain, and R2 is...
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JP5048508B2 |
A method for preparing asymmetric linear carbonate useful as an electrolyte for lithium secondary battery is disclosed. The method comprises the steps of: removing methyl acetate by a distillation while carrying out a transesterification...
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