Patent classifications
C07C1/323
Method for producing aromatic compound
In a cross coupling reaction, in a case where a halogen atom is selected as the leaving group of the raw material compound, a harmful halogen waste forms as a by-product after the reaction, and disposal of the waste liquid is complicated and environmental burden is high. In a carbon-hydrogen activation cross coupling reaction which requires no halogen atom as the leaving group, although no halogen waste forms as a by-product, the reaction substrate is considerably restricted, and the reaction remains a limited molecular construction method. A method for producing an aromatic compound, which comprises subjecting an aromatic nitro compound and a boronic acid compound to a cross coupling reaction in the presence of a metal catalyst.
PEROVSKITE-CATALYZED HYDROGENOLYSIS OF HETEROATOM-CONTAINING COMPOUNDS
Perovskite compounds that catalyze hydrogenolysis (e.g., hydrodeoxygenation, hydrodenitrogenation, and/or hydrodesulfurization) of heteroatom-containing compounds, as well as associated systems and methods, are generally described. In some embodiments, methods are provided for contacting a perovskite compound with a heteroatom-containing compound (e.g., a compound comprising oxygen, nitrogen, and/or sulfur) in the presence of hydrogen gas (H.sub.2) such that the perovskite compound catalyzes hydrogenolysis of the heteratom-containing compound to produce one or more hydrocarbon products (e.g., one or more aromatic hydrocarbons and/or aliphatic hydrocarbons). According to certain embodiments, the perovskite compound has the formula A.sub.1xB.sub.xDO.sub.3, where A comprises a lanthanide, B comprises an alkaline earth metal, D comprises a transition metal, and x is greater than or equal to 0 and less than or equal to 1. Compounds, systems, and methods described herein may be useful for applications involving petroleum (e.g., crude oil) and/or biofuels.
PEROVSKITE-CATALYZED HYDROGENOLYSIS OF HETEROATOM-CONTAINING COMPOUNDS
Perovskite compounds that catalyze hydrogenolysis (e.g., hydrodeoxygenation, hydrodenitrogenation, and/or hydrodesulfurization) of heteroatom-containing compounds, as well as associated systems and methods, are generally described. In some embodiments, methods are provided for contacting a perovskite compound with a heteroatom-containing compound (e.g., a compound comprising oxygen, nitrogen, and/or sulfur) in the presence of hydrogen gas (H.sub.2) such that the perovskite compound catalyzes hydrogenolysis of the heteratom-containing compound to produce one or more hydrocarbon products (e.g., one or more aromatic hydrocarbons and/or aliphatic hydrocarbons). According to certain embodiments, the perovskite compound has the formula A.sub.1xB.sub.xDO.sub.3, where A comprises a lanthanide, B comprises an alkaline earth metal, D comprises a transition metal, and x is greater than or equal to 0 and less than or equal to 1. Compounds, systems, and methods described herein may be useful for applications involving petroleum (e.g., crude oil) and/or biofuels.
PROCESS FOR MANUFACTURING 1-CYCLOPROPYL-NAPHTHALENES
A process for preparing 1-cyclopropyl-naphthalene derivatives of Formula (1) wherein R.sub.1-R.sub.7 are independently hydrogen, alkyl, alkoxy, cycloalkyl or aryl comprising the steps of a) contacting an acid salt of a 1-naphthyl-2-aminoethylketone with a base and a first solvent to obtain a solution wherein the molar ratio of base to 1-naphthyl-2-aminoethylketone acid salt is at least 0.7, b) addition of hydrazine to obtain a 3-(1-naphthyl)-1H-pyrazoline, c) optionally adding a second solvent and/or at least partially removing the first solvent, and d) heating the reaction mixture to a temperature above 190 C. to obtain the compound of Formula (1).
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PROCESS FOR MANUFACTURING 1-CYCLOPROPYL-NAPHTHALENES
A process for preparing 1-cyclopropyl-naphthalene derivatives of Formula (1) wherein R.sub.1-R.sub.7 are independently hydrogen, alkyl, alkoxy, cycloalkyl or aryl comprising the steps of a) contacting an acid salt of a 1-naphthyl-2-aminoethylketone with a base and a first solvent to obtain a solution wherein the molar ratio of base to 1-naphthyl-2-aminoethylketone acid salt is at least 0.7, b) addition of hydrazine to obtain a 3-(1-naphthyl)-1H-pyrazoline, c) optionally adding a second solvent and/or at least partially removing the first solvent, and d) heating the reaction mixture to a temperature above 190 C. to obtain the compound of Formula (1).
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METHOD FOR PRODUCING AROMATIC COMPOUND
In a cross coupling reaction, in a case where a halogen atom is selected as the leaving group of the raw material compound, a harmful halogen waste forms as a by-product after the reaction, and disposal of the waste liquid is complicated and environmental burden is high. In a carbon-hydrogen activation cross coupling reaction which requires no halogen atom as the leaving group, although no halogen waste forms as a by-product, the reaction substrate is considerably restricted, and the reaction remains a limited molecular construction method.
A method for producing an aromatic compound, which comprises subjecting an aromatic nitro compound and a boronic acid compound to a cross coupling reaction in the presence of a metal catalyst.
METHOD FOR PRODUCING AROMATIC COMPOUND
In a cross coupling reaction, in a case where a halogen atom is selected as the leaving group of the raw material compound, a harmful halogen waste forms as a by-product after the reaction, and disposal of the waste liquid is complicated and environmental burden is high. In a carbon-hydrogen activation cross coupling reaction which requires no halogen atom as the leaving group, although no halogen waste forms as a by-product, the reaction substrate is considerably restricted, and the reaction remains a limited molecular construction method.
A method for producing an aromatic compound, which comprises subjecting an aromatic nitro compound and a boronic acid compound to a cross coupling reaction in the presence of a metal catalyst.
CATALYTIC SYSTEMS AND METHODS FOR PROCESS STREAM TREATMENT
Catalytic systems and methods for treating process streams are disclosed. Catalytic wet oxidation and hydrolysis techniques may be used to treat one or more undesirable constituents such as HPAM and KHI. Methane may be produced in connection with at least some embodiments.
METHOD OF PRODUCING LIQUID HYDROCARBONS FROM A SYNGAS
A method of producing liquid hydrocarbons from a syngas, the method comprising: providing a first syngas containing hydrogen cyanide; converting at least a portion of the hydrogen cyanide in the first syngas to ammonia to provide a second syngas enriched in ammonia and depleted in hydrogen cyanide; passing the second syngas to a scrubber and contacting the second syngas with a scrubbing liquid, whereby at least a portion of ammonia contained in the second syngas is retained in the scrubbing liquid to form a third syngas depleted in ammonia and hydrogen cyanide; and passing the third syngas through a Fischer-Tropsch reaction chamber to produce a liquid hydrocarbon product, wherein passing the third syngas through a Fischer-Tropsch reaction chamber to produce a liquid hydrocarbon product comprises contacting the third syngas with a catalyst comprising a metal selected from cobalt, iron and ruthenium.