Abstract:
PROBLEM TO BE SOLVED: To provide a method by which the bromination of a fluorine-containing olefin is performed without using light while suppressing byproduct. SOLUTION: Fluorine-containing olefins of the formula [R1 is F, CF3, CHF2, CH2F, CF2R5 or CHFR5; R2, R3 and R4 are each the same or different F, H or R6; R5 and R6 are each the same or different lower alkyl group (having a substituent)], [e.g. 3,3,3-trifluoropropene] is brominated to produce a fluorine- containing brominated hydrocarbons. A metal powder such as antimony or a Lewis acid is allowed to coexist with the reaction system.
Abstract:
PURPOSE:To produce O-(5,6,7,8-tetrahydro-2-naphthyl)-N-(6-methoxy-2-pyridyl)-N- methylthiocarbamate useful as a medicine in a high purity. CONSTITUTION:Crude O-(5,6,7,8-tetrahydro-2-naphthyl)-N-(6-methoxy-2-pyridyl)-N- methylthiocarbamate having a water content of 20-70% is prepared, treated with active carbon and subsequently recrystallized from an alcohol to produce thiocarbamate having a high purity of >=99.0%.
Abstract:
NEW MATERIAL:A compound expressed by formula I (W represents methyne or N; A represents H, halogen, lower alkyl or lower alkoxy; X represents O or S; R1 and R2 represent H or trimethylsilyl, and R2 represents trimethylsilyl when R1 represents H, and R2 represents H when R1 represents trimethylsilyl). EXAMPLE:0-3-Trimethylsilylphenyl N-methyl-N-(6-methoxy-2-methylaminopyridine) thiocarbamate. USE:A herbicide. PREPARATION:A phenol derivative expressed by formula II (Y represents H or halocarbonyl) is reacted with an aromatic amine derivative expressed by formula III (Z represents halocarbonyl when group Y in formula II represents H, and represents H when Y represents halocarbonyl).
Abstract:
PURPOSE:To obtain the titled compound in high selectivity and yield, using chlorine in high efficiency, by reacting pyridine with chlorine in a water- containing halogenated hydrocarbon solvent under irradiation with ultraviolet ray, wherein the chlorination is carried out by blasting chlorine in two steps at specific rates. CONSTITUTION:Pyridine is made to react with chlorine in a water-containing halogenated hydrocarbon solvent (e.g. chloroform, carbon tetrachloride, etc.) under irradiation with ultraviolet ray to obtain 2,6-dichloropyridine. In the above process, chlorine is blown into the system at a rate of 1.5-4.0mol./hr per 1mol. of pyridine, the produced pyridine hydrochloride is removed from the system and again chlorine is blown into the system at a rate of 0.3-0.5mol./ hr, thereby carrying out the chlorination in two steps. 2,6-Dichloropyridine is useful as an intermediate for pharmaceuticals and agricultural chemicals.
Abstract:
PROBLEM TO BE SOLVED: To provide a novel conductive polymer usable as an overcurrent protection element.SOLUTION: A copolymer comprises a repeating unit derived from 3,4-bis(carbamoyloxy)thiophenes represented by the specified general formula (1) or general formula (2), and a repeating unit derived from a thiophene monomer. [In the specified formula (1), Rand Reach independently represent a C1-C12 alkyl group.] [In the specified formula (2), Rto Rrepresent a hydrogen atom or a C1-C3 hydrocarbon group.]
Abstract:
PROBLEM TO BE SOLVED: To provide a copolymer to be used as an overcurrent protective element.SOLUTION: This copolymer comprises 0.01-20 mol% unit represented by general formula (1) and 99.99-80 mol% unit represented by general formula (2), wherein Rand Reach independently represents a hydrogen atom or a 1-8C alkoxy group or malonate group.
Abstract:
PROBLEM TO BE SOLVED: To provide a composite of a polystyrenesulfonic acid or its salt and a polythiophene derivative, capable of forming a highly conductive film at low cost; and to provide a coating composition including a water-dispersion of the composite.SOLUTION: The composite comprises: a polystyrenesulfonic acid or its salt obtained by polymerizing styrenesulfonic acid or its salt; and a polythiophene derivative obtained by polymerizing a thiophene derivative in the presence of the polystyrenesulfonic acid or its salt. Here, the composite is preferably the one made by polymerization of the polystyrenesulfonic acid or its salt in the presence of aminosulfonic acid, or the one obtained by mixing aminosulfonic acid after polymerization of the polystyrenesulfonic acid or its salt.
Abstract:
PROBLEM TO BE SOLVED: To provide a structure-directing agent for zeolite production composed of an N, N, N-trimethyladamantane ammonium salt in which zeolite is obtained with good economical efficiency, and to provide a method for producing zeolite using the same. SOLUTION: When zeolite is produced by hydrothermal synthesis of a synthetic raw material mixture containing a silica source, an aluminum source, an alkali source, water, and a structure-directing agent, a compound represented by formula (1) is used as a structure-directing agent. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method capable of simply and easily producing an N,N,N-trialkyladamantane ammonium salt useful as a mold compound in industrially producing zeolite. SOLUTION: This method for producing the N,N,N-trialkyladamantane ammonium salt is provided by reacting an N,N-dialkyl-1-aminoadamantane expressed by general formula (1) with a dialkyl carbonate compound under the condition of presence or absence of solvent by making COPYRIGHT: (C)2010,JPO&INPIT