Patent classifications
B01J31/0244
Reduction catalyst, and chemical reactor, reduction method and reduction product-producing system employing the catalyst
The present embodiments provide a reduction catalyst realizing high reaction efficiency and a reduction reactor employing the catalyst. The reduction catalyst of the embodiment comprises an electric conductor and an organic layer having organic modifying groups placed on the surface of the conductor. The organic modifying groups have an aromatic ring having two or more nitrogen atoms. The reduction catalyst is used in a reduction reactor, and the reactor is also provided.
ELECTROCHEMICAL REDUCTION OF CARBON DIOXIDE
Disclosed herein is a method for selectively reducing, using electrical energy, CO.sub.2 to carbon monoxide or formic acid, a catalyst for use in the method, and an electrochemical reduction system. The method for producing carbon monoxide or formic acid by electrochemically reducing carbon dioxide of the present invention includes (a) reacting carbon dioxide with a metal complex represented by formula (1), and (b) applying a voltage to a reaction product of the carbon dioxide and the metal complex represented by formula (1):
##STR00001##
Preparation of amino acids and amino acid derivatives
The invention relates to a method for synthesizing amino acids or amino acid derivatives involving cross metathesis of functionalized olefins and a tandem amination-reduction process. Amino acids and amino acid derivatives present many interesting physical and chemical properties finding many uses in the automotive, fuel, electronic, and textile industries.
ELECTRON DONOR, AND METHOD FOR SYNTHESIZING 4, 4'-BIPYRIDINE USING ELECTRON DONOR
Provided are an electron donor that is easy to handle and can be used to carry out a coupling reaction economically and efficiently through simple operations under mild conditions in a short period of time, and a method for synthesizing 4,4-bipyridine using the electron donor. The electron donor includes a mixture of a dispersion product obtained by dispersing sodium in a dispersion solvent and 1,3-dimethyl-2-imidazolidinone, and this electron donor is used in the method for synthesizing 4,4-bipyridine.
Synthesis method of 2,4,6-trifluorobenzylamine
The disclosure provides a synthesis method of 2,4,6-trifluorobenzylamine, belonging to the technical field of chemical synthesis. The synthesis method is characterized by comprising the following steps: (1) allowing pentachlorobenzonitrile as a raw material to undergo fluoridation reaction with a fluoridation agent based on 2,4,6-trifluoro-3,5-dichlorobenzonitrile as a solvent to obtain 2,4,6-trifluoro-3,5-dichlorobenzonitrile; (2) hydrogenating the obtained 2,4,6-trifluoro-3,5-dichlorobenzonitrile with hydrogen in the presence of organic carboxylic acid, based, on palladium carbon as a catalyst to obtain 2,4,6-trifluoro-3,5-dichlorobenzylamine; and (3) hydrogenating the obtained 2,4,6-trifluoro-3,5-dichlorobenzylamine with hydrogen in a solvent in the presence of a catalyst to obtain 2,4,6-trifluorobenzylamine. The synthesis method has the advantages of low raw material cost, short reaction steps, high reaction yield, good product purity simple operation and the like, and is suitable for industrial production.
Oxidation catalyst and processes for using same
A catalytic composition and process for using same. The catalyst may be utilized for an oxidation reaction, for example, for the conversion of mercaptans to disulfides. The catalyst includes a metal component, for example, cobalt phthalocyanine structure. The organic component may comprise any number of different oxidation promoters that are capable of promoting the reduction of oxygen, preferably in a caustic, environment. The organic component may comprise an unsaturated six member ring having at least five carbon atoms, and wherein the sixth member of the six member ring is either C or N, and in which at least two substituent groups are present on the six membered ring.
Method of producing deuterated haloform
The invention relates to methods of producing deuterated haloform, and apparatus for such methods. In an aspect of the invention, there is provided a method to produce deuterated haloform, the method comprising: (a) providing a mixture comprising a compound of formula (I) ##STR00001##
heavy water, and a catalyst of formula (II), ##STR00002##
wherein each X in formula (I) is independently a halogen, and R.sup.1 is an aliphatic group, or an aryl group, wherein at least one of R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is an anionic functional group, a polymer, or a linker attached to a polymer; (b) heating the mixture to displace the trihalocarbon anion; and (c) forming the deuterated haloform.
OLEFIN OLIGOMERIZATION CATALYST AND METHOD FOR PRODUCING OLEFIN OLIGOMER IN THE PRESENCE OF THE SAME CATALYST
A method for producing an olefin oligomer is disclosed, in which an olefin oligomerization reaction is performed in the presence of an olefin oligomerization catalyst comprising (A) a chromium compound, (B) an amine compound of the general formula (1):
##STR00001##
(R.sup.1 to R.sup.4 represent a group such as a hydrocarbon group, Y represents a structure represented by CR.sup.5R.sup.6, R.sup.5 and R.sup.6 represent a group such as a hydrogen atom, and Z represents an integer of 1 to 10),
and (C) a compound such as an organometal compound; and the olefin oligomerization catalyst.
Ion pair catalysis of tungstate and molybdate
D The present invention relates to ion pair catalysts (I) comprising the cationic bisguanidinium ligand (A) and diperoxomolybdate anion (B). The present invention also relates to ion pair catalysts (III) comprising the cationic bisguanidinium ligand (C) and peroxotungstate anion (D). It further relates to the use of the said catalysts in the manufacture of enantiomerically enriched sulfoxides. ##STR00001##
SYNTHESIS METHOD OF 2,4,6-TRIFLUOROBENZYLAMINE
The disclosure provides a synthesis method of 2,4,6-trifluorobenzylamine, belonging to the technical field of chemical synthesis. The synthesis method is characterized by comprising the following steps: (1) allowing pentachlorobenzonitrile as a raw material to undergo fluoridation reaction with a fluoridation agent based on 2,4,6-trifluoro-3,5-dichlorobenzonitrile as a solvent to obtain 2,4,6-trifluoro-3,5-dichlorobenzonitrile; (2) hydrogenating the obtained 2,4,6-trifluoro-3,5-dichlorobenzonitrile with hydrogen in the presence of organic carboxylic acid, based, on palladium carbon as a catalyst to obtain 2,4,6-trifluoro-3,5-dichlorobenzylamine; and (3) hydrogenating the obtained 2,4,6-trifluoro-3,5-dichlorobenzylamine with hydrogen in a solvent in the presence of a catalyst to obtain 2,4,6-trifluorobenzylamine. The synthesis method has the advantages of low raw material cost, short reaction steps, high reaction yield, good product purity simple operation and the like, and is suitable for industrial production.