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WO/2014/099246A1 |
The present invention provides a process for producing nitroalkanes by dehydroxylation of nitroalcohols. This provides an alternate reaction route for makingnitroalkanes, such as 2- nitropropane and its derivatives.
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WO/2014/086065A1 |
Provided is a method for producing an alkyl nitrate, using a centrifugal extraction device as a separator for the esterification reaction, feeding a mixed acid solution containing sulfuric acid and nitric acid from a heavy phase inlet of...
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WO/2014/073003A1 |
The present invention relates to the single-step process for the synthesis of aryl olefin compounds of Formula (1) by reacting aryl aldehydes with alkyl aldehydes in presence of malononitrile and acid or base or salt, optionally in prese...
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WO/2014/058078A1 |
Disclosed is a process for preparing dihydro-2H-pyran derivatives of formula I: wherein R1 and R2 are defined herein. The process of the invention provides the compound of formula I in concise cascade reactions and in one pot. The compou...
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WO/2014/037307A1 |
Disclosed is a method for the synthesis of 6-iodo-2-oxindole useful as intermediate in the manufacture of pharmaceutically active ingredients. Also disclosed is a novel intermediate used in the synthesis of this compound.
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WO/2014/016292A1 |
The invention relates to a continuous method for producing nitrobenzene by nitrating benzene with sulphuric acid mixtures and nitric acid mixtures using a stoichiometric excess of benzene, the content of the aliphatic organic compounds i...
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WO/2014/016289A1 |
The invention relates to an adiabatic process for producing nitrobenzene by nitrating benzene with sulphuric acid mixtures and nitric acid mixtures using a stoichiometric excess of benzene and reusing non-reacted benzene, the content of ...
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WO/2014/016290A1 |
The invention relates to a continuous adiabatic process for producing nitrobenzene by nitrating benzene with sulphuric acid mixtures and nitric acid mixtures using a stoichiometric excess of benzene, the content of organic compounds in t...
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WO/2013/093943A9 |
Disclosed herein is a single step catalytic process for the production of enantiomerically pure α-Aryloxy-α'-Azido/Alkoxy alcohols of formula (A). The invention, in particular discloses phenolytic kinetic resolution of racemic anti and...
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WO/2014/009882A1 |
The invention demonstrates a process for conducting organic reactions in a standalone laboratory scale solar photo thermo chemical reactor for conducting organic reactions requiring elevated temperature, light and mechanical agitation, w...
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WO/2013/140369A9 |
A process for continuous adiabatic nitration of toluene to mononitrotoluene (MNT). The process yields a product quality of MNT that is comparable to that obtained by isothermal production. The process uses excess toluene, with the reacti...
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WO/2014/003195A1 |
According to the present invention, an unsaturated primary alcohol or unsaturated ether having an allyl site is produced directly by a one-step reaction from an alkene compound having an allyl group under moderate reaction conditions by ...
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WO/2013/179872A1 |
Provided are an ether compound of a specific structure useful as a raw material when producing a functional polymer material or functional electronic material and a method for producing this compound. A compound represented by general fo...
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WO/2013/164172A1 |
Process for the production of a chemical compound from a carbon dioxide starting material, comprising the steps of a) providing a feed stream consisting mainly of carbon dioxide; b) electrolysing in an electrolysis stage the carbon dioxi...
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WO/2013/160367A1 |
The invention relates to a method for washing a raw mixture that is produced during the nitration of toluene following separation of the nitrating acid, and that contains dinitrotoluene, nitric acid, nitrogen oxides and sulphuric acid. S...
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WO/2013/150840A1 |
A method for producing a nitrous acid ester whereby nitric oxide, oxygen, and an alcohol are reacted to produce a nitrous acid ester, the method for producing a nitrous acid ester including: a step for supplying the bottoms liquid from t...
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WO/2013/133925A1 |
A process of preparing a nitroalcohol, e.g., 2-nitro-2-methyl-1-propane, from a nitropolyol, e.g., 2-nitro-2 -methyl-1,3-propanediol, the process comprising the step of contacting under hydrogenation conditions the nitropolyol with hydro...
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WO/2013/113651A1 |
The invention relates to a method and to a system for producing nitrobenzene, in particular continuously, by means of adiabatic nitration of benzene with nitric acid in the presence of sulfuric acid, wherein after the nitration, a multis...
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WO/2013/095301A1 |
Present invention relates to a method of preparing a chiral α- or β-substituted ketone from the corresponding β- or γ-substituted aldehyde, wherein the ketone has formula (I), (III) or (V), and the corresponding aldehyde has formula ...
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WO/2013/054181A1 |
Disclosed herein is a continuous tubular reactor based conversion of acetophenones to amino substituted acetophenones wherein the nitration is carried out at -10 to 10 °C followed by reduction to m-nitrophenone resulting in uniform outp...
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WO/2013/050301A1 |
The present invention relates to processes for the enantio-selective preparation of spyrrolidine derivatives useful in the manufacture of pesticidally active compounds, as well as to intermedates in the processes. The processes include t...
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WO/2013/049605A1 |
3'-Amino-2'-hydroxybiphenyl-3-carboxylic acid (BPCA) and related compounds have been prepared using compounds such as: wherein R1 is -H, -Cl or -F; R2 is -Br or -I; and R3 is -H or -N02. BPCA is useful, for example, in the preparation of...
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WO/2013/048762A1 |
An in-situ method for preparing a hydrolyzed, acyl halide-containing compound by combining a hydrocarbon reactant including a plurality of acyl halide functional groups containing hydrocarbon reactant, a tri-hydrocarbyl phosphate compoun...
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WO/2013/030223A1 |
The invention relates to a method for the continuous production of nitrobenzene, wherein crude nitrobenzene is first produced from benzene by nitration and is then washed successively in at least one acidic wash, in at least one alkaline...
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WO/2013/025061A2 |
The present invention relates to a method for preparing nitroparaffin in high yield by reacting a hydrocarbon compound with a gas phase nitration agent using a specific solid acid catalyst, a solid base catalyst or a mixture thereof as a...
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WO/2013/020798A1 |
The invention relates to a method for purifying crude aromatic nitro compounds that originate from the nitration of aromatic compounds, comprising the following washing steps (a1) and (a2), wherein each of the steps (a1) and (a2) can be ...
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WO/2013/020961A1 |
The invention relates to a method for purifying crude aromatic nitro compounds produced by the nitration of aromatic compounds, said method comprising performing the following washing stage (a) one or more times: (a) bringing the crude a...
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WO/2013/012777A2 |
A process for making a tertiary aminoalcohol compound is disclosed. The process comprises using an excess amount of a carbonyl compound in a condensation step between the carbonyl compound and a nitroalkane in the presence of a catalytic...
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WO/2013/005425A1 |
[Problem] To provide a nitrobenzene compound manufacturing method capable of being carried out by simple operations under moderate conditions without the use of special reacting device. [Solution] This invention provides a method for man...
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WO/2012/159390A1 |
The present invention pertains to a method for preparing 2,3-dimethyl-2,3-dinitrobutane, and the method comprises the steps of: (1) contacting and reacting a titanium silicalite molecular sieve catalyst, acetone, hydrogen peroxide, and a...
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WO/2012/156540A2 |
The invention discloses a method for preparation of mononitrated aromatic compounds in a liquid-liquid biphasic solvent system with aqueous nitric acid as one phase and ionic liquids (ILs) as the second phase, wherein the nitric acid is ...
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WO/2012/156095A1 |
The present invention relates to a method for removing impurities from nitrated crude products obtained during the nitration of nitratable aromatic compounds, after removal of the final nitrating acid, by treatment with a washing medium,...
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WO/2012/152438A1 |
The present invention relates to a one-step process for the synthesis of nitric acid esters or 15N isotopically labeled nitrate esters of organic compounds starting from the correspondent alcohols. Formula (I).
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WO/2012/147925A1 |
Provided is a method for simply producing, by a short step and at a good yield, a stereospecific asymmetric five-membered ring-containing compound that serves as the synthesis intermediate for the formation of a five-membered ring such a...
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WO/2012/148643A1 |
Disclosed are processes and apparatuses for concentrating at least one organic acid using an alkyl acetate as an entrainer. The processes and apparatuses may use the same alkyl acetate as an entrainer to concentrate a mixture of organic ...
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WO/2012/138494A1 |
A process for making a 2-nitro-1-ethanol derivative of formula III: wherein R3 is as described herein is provided. Novel 2-nitro-1-ethanol derivatives provided.
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WO/2012/121156A1 |
The invention relates to a method for producing an alkene derivative represented by general formula [4] (wherein R1 represents an aryl group having, as a substitute, an alkyl group, an alkoxy group, a halogen atom, an amino group, or a n...
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WO/2012/113726A1 |
Process to obtain a trifluoromethylating composition which comprises the reaction between a copper (I) source and a base in the presence of a solvent and between the resulting cuprating reagent with fluoroform.
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WO/2012/111468A1 |
Provided are a novel palladium catalyst which is very safe and recyclable, and a method for producing a novel bisaryl compound using the palladium catalyst. When an aromatic halide and an aromatic boronic acid are reacted in the presence...
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WO/2012/110839A1 |
A method and apparatus for removing non-aromatic impurities from non- nitrated aromatic reactant in a nitration production process, in which process an aromatic reactant is nitrated (100) to produce a nitrated aromatic product using a mo...
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WO/2012/104254A1 |
Precipitation of nitrohydroxyaromatic salts from the nitrated crude products obtained in the nitration of aromatic compounds after alkaline scrubbing, for example mononitrotoluenes, is prevented by contacting the nitrated crude products ...
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WO/2012/102290A1 |
The present invention provides: a synthesis system for synthesizing aniline and/or styrene with high efficiency; a synthesis system for synthesizing butadiene (1,3-butadiene) with high efficiency; a rubber chemical substance for tires, w...
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WO/2012/093271A1 |
The invention relates to palladium(0)-tetrakis{tri-[3,5-bis(trifluoromethyl)- phenylj-phosphine} complex of formula (I), as well as to its preparation and use. This compound is outstandingly stable, and can be used as catalyst with excel...
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WO/2012/089769A1 |
Disclosed is a process for the synthesis of Nicorandil (1), 2-(nicotinamide)ethyl nitrate, starting from N-(2-hydroxyethyl)nicotinamide (15), using nitration with nitric acid in the presence of acetic anhydride Said synthesis method is p...
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WO/2012/077456A1 |
Provided is a method for simple, high-yield synthesis of ether, ester, and thioether that have a variety of functional groups. Specifically provided is a production method for ether, ester, or thioether, characterized by the reaction of ...
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WO/2012/078725A1 |
Disclosed are a process and an apparatus for concentrating an organic acid by using a nitroalkane as an entrainer for the azeotropic removal of water from an aqueous organic acid solution. The nitroalkane may be the same as a nitroalkane...
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WO/2012/066533A1 |
The present invention relates to a method of manufacturing dibromonitromethane by reacting bromopicrin with sodium bisulfite in a high yield, at ambient temperature, without employing caustic inorganic materials or organic solvents.
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WO/2012/068284A2 |
The disclosed process can efficiently synthesize functionalized benzosuberenes. The process provides an improved method of production of benzosuberene and compounds containing a benzosuberene moiety, which is characterized by a ring clos...
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WO/2012/060347A1 |
[Problem] To provide an environmentally friendly organic hybrid type catalyst for achieving oxidation reaction of alcohols. [Solution] An organic hybrid type catalyst which is a 2,2,6,6-tetramethylpyridine-1-oxyl derivative represented b...
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WO/2012/049513A1 |
According to the invention there is provided a method for the nitration of an aromatic compound including the step of reacting the aromatic compound with nitric acid in the presence of an acid anhydride and an aluminosilicate catalyst, i...
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