Abstract: A method for producing methyldichlorophosphane, the method including: allowing methane and phosphorus trichloride to react in the presence of an additive using a metal compound, or a metal compound carried on a carrier, or both thereof.

Abstract: A method for producing methyldichlorophosphane, the method including: allowing methane and phosphorus trichloride to react in the presence of an additive using a metal compound, or a metal compound carried on a carrier, or both thereof.

Abstract: A method for producing methyldichlorophosphane, the method including: allowing methane and phosphorus trichloride to react in the presence of an additive using a metal compound, or a metal compound carried on a carrier, or both thereof.

Abstract: [Problem] The present invention provides a method for producing and isolating a target quinolone derivative using general industrial facilities with high purity. [Solving means] The present invention also provides a method for producing a quinolone derivative, the method including reacting a ketone with an anthranilic acid derivative using an aluminum halide and removing the aluminum halide under basic conditions.

Abstract: [Problem] The present invention provides a method for producing and isolating a target quinolone derivative using general industrial facilities with high purity. [Solving means] The present invention also provides a method for producing a quinolone derivative, the method including reacting a ketone with an anthranilic acid derivative using an aluminum halide and removing the aluminum halide under basic conditions.

Abstract: A method for producing methyldichlorophosphane, the method including: allowing methane and phosphorus trichloride to react in the presence of an additive using a metal compound, or a metal compound carried on a carrier, or both thereof.

Abstract: The present invention provides a method for producing a compound represented by the following formula (I) with a compound represented by the following formula (A) as a starting substance via production of an intermediate represented by the following formula (B) by use of a trifluoroacetic acid ester and a metal base.

Abstract: A method for producing a compound represented by formula (I) comprises the steps of: acylating an amino group at position 2 of a compound represented by formula (A) by use of trifluoroacetic acid as an acylating agent to thereby produce a compound represented by formula (B); and further alkylating a nitrogen atom at position 1 of the compound represented by formula (B), as follows

Abstract: To supply a derivative having a 2-acyliminopyridine structure and being represented by the following formula (I) in an amount required as a pest control agent stably and at a low cost, provided is a method comprising the steps of: acylating an amino group at position 2 of a compound represented by formula (A) by use of an acylating agent, to thereby produce a compound represented by formula (B); and further alkylating a nitrogen atom at position 1 of the compound represented by formula (B): [where Ar represents a phenyl group or a 5- to 6-membered heterocycle, R1 represents a C1-6 alkyl group, and Y represents a hydrogen atom; a halogen atom; a hydroxyl group; a C1-6 alkyl group which may be substituted with a halogen atom; a C1-6 alkyloxy group which may be substituted with a halogen atom; a cyano group; a formyl group; or a nitro group].

Abstract: A method for producing a compound represented by formula (I) comprises the steps of: acylating an amino group at position 2 of a compound represented by formula (A) by use of trifluoroacetic acid as an acylating agent to thereby produce a compound represented by formula (B); and further alkylating a nitrogen atom at position 1 of the compound represented by formula (B), as follows

Abstract: To supply a derivative having a 2-acyliminopyridine structure and being represented by the following formula (I) in an amount required as a pest control agent stably and at a low cost, provided is a method comprising the steps of: acylating an amino group at position 2 of a compound represented by formula (A) by use of an acylating agent, to thereby produce a compound represented by formula (B); and further alkylating a nitrogen atom at position 1 of the compound represented by formula (B): [where Ar represents a phenyl group or a 5- to 6-membered heterocycle, R1 represents a C1-6 alkyl group, and Y represents a hydrogen atom; a halogen atom; a hydroxyl group; a C1-6 alkyl group which may be substituted with a halogen atom; a C1-6 alkyloxy group which may be substituted with a halogen atom; a cyano group; a formyl group; or a nitro group].

Abstract: To supply a derivative having a 2-acyliminopyridine structure and being represented by the following formula (I) in an amount required as a pest control agent stably and at a low cost, provided is a method comprising the steps of: acylating an amino group at position 2 of a compound represented by formula (A) by use of an acylating agent, to thereby produce a compound represented by formula (B); and further alkylating a nitrogen atom at position 1 of the compound represented by formula (B): [where Ar represents a phenyl group or a 5-to 6-membered heterocycle, R1 represents a C1-6 alkyl group, and Y represents a hydrogen atom; a halogen atom; a hydroxyl group; a C1-6 alkyl group which may be substituted with a halogen atom; a C1-6 alkyloxy group which may be substituted with a halogen atom; a cyano group; a formyl group; or a nitro group].

Abstract: The present invention provides a method for producing crystalline glufosinate P free acid with high purity from glufosinate P hydrochloride salt. In addition, the present invention also provides a method comprises a process of: dissolving glufosinate P hydrochloride salt in a solvent which is a mixed solvent of water and an alcohol(s) selected from the group of methanol, ethanol, propyl alcohol and isopropyl alcohol, and a ratio of water to the alcohol(s) is from 1:3 to 1:100 by volume; crystallizing glufosinate P free acid after neutralizing by addition of a base.

Abstract: An objective of the present invention is to provide a process for producing 4-carbonyl oxyquinoline derivatives useful as agricultural and horticultural pesticides and fungicides. The objective can be attained by a process for producing 4-carbonyl oxyquinoline derivatives represented by general formula (1), the process including reacting a quinolone derivative with a halogenated compound or an acid anhydride in the presence of a phase transfer catalyst and a base.

Abstract: The present invention provides a method for producing crystalline glufosinate P free acid with high purity from glufosinate P hydrochloride salt. In addition, the present invention also provides a method comprises a process of: dissolving glufosinate P hydrochloride salt in a solvent which is a mixed solvent of water and an alcohol(s) selected from the group of methanol, ethanol, propyl alcohol and isopropyl alcohol, and a ratio of water to the alcohol(s) is from 1:3 to 1:100 by volume; crystallizing glufosinate P free acid after neutralizing by addition of a base.

Abstract: Disclosed is a process for efficiently producing pyripyropene derivatives having acyloxy at the 1-position and 11-position and hydroxyl at the 7-position. The process comprises selectively acylating hydroxyl at the 1-position and 11-position of a compound represented by formula B1 through one to three steps with an acylating agent in the presence or absence of a base.

Abstract: Disclosed is a process for efficiently producing pyripyropene derivatives having acyloxy at the 1-position and 11-position and hydroxyl at the 7-position. The process comprises selectively acylating hydroxyl at the 1-position and 11-position of a compound represented by formula B1 through one to three steps with an acylating agent in the presence or absence of a base.

Abstract: To supply a derivative having a 2-acyliminopyridine structure and being represented by the following formula (I) in an amount required as a pest control agent stably and at a low cost, provided is a method comprising the steps of: acylating an amino group at position 2 of a compound represented by formula (A) by use of an acylating agent, to thereby produce a compound represented by formula (B); and further alkylating a nitrogen atom at position 1 of the compound represented by formula (B): [where Ar represents a phenyl group or a 5-to 6-membered heterocycle, R1 represents a C1-6 alkyl group, and Y represents a hydrogen atom; a halogen atom; a hydroxyl group; a C1-6 alkyl group which may be substituted with a halogen atom; a C1-6 alkyloxy group which may be substituted with a halogen atom; a cyano group; a formyl group; or a nitro group].

Abstract: An objective of the present invention is to provide a crystal of 2-ethyl-3,7-dimethyl-6-(4-(trifluoromethoxy)phenoxy)quinoline-4-yl methyl carbonate having stable physicochemical properties. The objective is attained by a crystal of 2-ethyl-3,7-dimethyl-6-(4-(trifluoromethoxy)phenoxy)quinoline-4-yl methyl carbonate that exhibits a diffraction peak pattern shown in FIG. 1 as determined by powder X-ray diffractometry.

Abstract: An objective of the present invention is to provide a process for producing 4-carbonyl oxyquinoline derivatives useful as agricultural and horticultural pesticides and fungicides. The objective can be attained by a process for producing 4-carbonyl oxyquinoline derivatives represented by general formula (1), the process including reacting a quinolone derivative with a halogenated compound or an acid anhydride in the presence of a phase transfer catalyst and a base.