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Matches 651 - 700 out of 1,226

Document Document Title
JP2001293465A
To provide a treating agent and treating method for contaminated media which allow the cracking of dioxins in a low-temperature region and the preventing of the elution of heavy metals which are heretofore considered infeasible. This tre...  
JP2001261594A
To provide an industrially suitable method for producing 1- chloroheptafluorocyclopentene in high selectivity.The objective compound is produced by reducing 1,1- dichlorooctafluorocyclopentane with hydrogen in the presence of a catalyst ...  
JP2001515507A
(57) How to manufacture AF4 using the new reducing agent which brings about the cost by which summary reduction was carried out. AF4 can be given by the yield substantially improved using low dilution technology. The relative amount of a...  
JP2001247497A
To obtain a new perfluoro-organic peroxide useful as a polymerization initiator and a specific perfluoro-organic group-incorporating agent, and a new perfluoro-organic compound obtained by using the above peroxide.This peroxide of the fo...  
JP2001247493A
To provide a method for industrially advantageously producing high- purity 1,2,3,3,4,4,5,5-octafluorocyclopentene without using any high-purity raw materials.This method comprises the following two consecutive steps: 1st step: in the pre...  
JP2001247494A
To provide a method and a corresponding apparatus for producing the subject compound at a reduced cost through recovering a surplus hydrogen gas having not been used in the reaction and using the gas for the hydrogenation reaction again....  
JP3208140B2  
JP2001240568A
To provide a preparation method of 1-chloroheptafluorocyclopentene which is industrially advantageous and also easy in purification and separation without high purity 1,2-dichlorohexafluorocyclopentene as a raw material.Mixture of at lea...  
JP2001240567A
To provide a preparation method capable of obtaining a target compound in high selectivity and high yield by using a catalyst low in deactivation in the hydrogenation system when preparing of 1,1,2,2,3,3,4- heptafluorocyclopentane by hyd...  
JP2001240569A
To provide a preparation method of a 4C or higher compound containing-CH2-CHF- group that is low in deactivation of a hydrogenation catalyst in hydrogenation, also high in selectivity and yield and industrially advantageous.The 4C or hig...  
JP2001226301A
To provide a new component for using in nematic liquid crystal or cholesteric liquid crystal mixture having a preferable viscosity/clear point ratio and a positive dielectric anisotropy.This compound is expressed by formula (I). R1-A-Z1 ...  
JP2001213818A
To provide a method for producing an octafluoro[2,2]paracyclophane derivative without needing a special facility with an easy operation at a low cost.A method of production for an octafluoro[2,2]paracyclophane derivative of the general f...  
JP2001206858A
To provide a method for decomposing and treating polychlorinated biphenyl-based (PCB-based) waste, capable of decomposing and treating waste PCB in a large amount to be made innocuous at a low cost. This method for decomposing and treati...  
JP2001206859A
To provide a new asymmetric bisabamantane-based compound in which adamantane frameworks are bonded through a methylene group. This 2-(2-methyladamantyl)-2'-adamantylmethane-based compound is expressed by the general formula (I) (Y1 and Y...  
JP3171587B2  
JP3192515B2
PURPOSE: To obtain a halofluorinated product of various alkenes under relatively mild condition in high yield, stereoselectivity and site selectivity. CONSTITUTION: An alkene is made to react with a fluorination agent consisting of a tet...  
JP2001506252A
(57) G among: type about the fluorination phenanthrene derivative by which summary book invention is expressed with following formula (I), * Are CHF*CH* or *CF=CH* and;E, E, E, E, E, and E, Or it is different, and it is *CH*, *CF*, or *N...  
JP2001505926A
(57) The above-mentioned method characterized by a pel fluorocarbon compound existing in a reaction medium in the method of fluorinating an organic compound including making a summary organic compound react to a fluorinating agent. The p...  
JP3162380B2  
JP3154128B2  
JP3151216B2  
JP3130042B2  
JP3151929B2
PURPOSE: To provide a new fluorocyclohexene derivative applicable to liquid crystal display devices with wide angle of field of view because of being capable of obtaining a liquid crystal composition with reduced refractive index anisotr...  
JP2001010995A
To obtain a new compound useful for synthesizing 6-fluoronaphthalene derivatives which are liquid-crystalline compounds.A compound of formula I [S is a 1 to 16C alkyl, a 1 to 16C alkoxy, a 2 to 16C alkenyl or the like; the ring A and the...  
JP2001010991A
To obtain a new tetralin which can largely lower threshold voltage without deteriorating responsibility and is useful for liquid crystal displays.A compound of formula I [R is a 1 to 20C alkyl, an alkoxy, an alkoxyalkyl, an alkenyl or th...  
JP2001010994A
To obtain a new compound which is extremely useful for producing fluoronaphthalene derivatives suitable as liquid crystal materials.A compound of formula I [S is a 1 to 16C alkyl, a 1 to 16C alkoxyl, a 2 to 16C alkenyl or the like; the r...  
JP2000344693A
To provide a new diarylethene compound having excellent fading property in addition to durability to repeated use and useful for an organic photochromic film, etc.The objective diarylethene compound is expressed by formula I [(n) is 2-5;...  
JP2000332001A
To provide a gas for plasma reaction, consisting of octafluorocyclopentene, having improved etching performance and a manufacturing method thereof. The purity of octafluorocyclopentene in this gas is not less than 99.9 vol.% with respect...  
JP3128786B2
PURPOSE: To produce an isomer mixture capable of giving a copolymer having excellent heat-resistance and mechanical strength when copolymerized with ethylene by contacting an endo isomer in a mixture of aromatic group-containing norborne...  
JP2000309552A
To obtain the new subject compound having an alkenyl group or an alkadienyl group in a bicyclohexyl group and useful as a nematic liquid crystal material having a low viscosity and expressing a high NI point. This fluorobicyclohexylbenze...  
JP3126465B2
PURPOSE: To prepare perhalogenated olefins in high yield and high selectivity from the corresponding perhalogenated alkanes. CONSTITUTION: The perhalogenated olefin is prepared by reacting a perhalogenated alkane containing at least 2 ca...  
JP2000514062A
(57) Summary book invention offers some synthetic methods and the separation method of being effectively separable with organic matter / fluorine system phase separation technology. The present invention offers the new compound about the...  
JP2000247912A
To provide a method suitable for producing 1,1,2,2,3,3,4 heptafluorocyclopentane useful for a solvent, a detergent or the like at high selectivity and yield on an industrial scale. 1,1,2,2,3,3,4-Heptafluorocyclopentane is produced by the...  
JP3086802B2  
JP2000229894A
To purify a fluorinated unsaturated hydrocarbon in high purity by bringing a distillation fraction of a reaction mixture of a specific fluorinated unsaturated hydrocarbon into contact with zeolite, thereby efficiently removing an alcohol...  
JP2000226345A
To obtain a perhalogenated cyclopentene by a method capable of reducing load to an apparatus and suitable for industrial production in fewer steps by reacting perchlorocyclopentadiene with chlorine and hydrogen fluoride in the presence o...  
JP2000226344A
To obtain a new compound being phenyldecahydronaphthalene to which an alkenyl group is directly bonded, having wide nematic phase temperature range and small refractive index, anisotropy, enabling driving at low voltage and high speed re...  
JP2000226346A
To obtain heptafluorocyclopentane in high yield and selectivity by reducing dichlorooctafluorocyclopentane with hydrogen in the presence of a hydrogenation catalyst comprising a metal of the group VIII of periodic table. (A) 1,1-Dichloro...  
JP2000198752A
To provide a method for producing a chlorofluorocyclopentane useful as a raw material for producing a fluorinated cyclopentane in an industrial scale. This method for producing a chlorofluorocyclopentane of formula III: C5ClDF10-D (D is ...  
JP2000169403A
To obtain a stable new compound useful as a liquid crystalline medium, especially the liquid crystalline medium for TFT or STN display, and having negative or positive dielectric anisotropy and especially small optical anisotropy Δn.Thi...  
JP2000143560A
To provide a method for chlorinating a cycloalkene, capable of being industrially carried out and capable of extremely low reducing the production of a by-product, 4-chlorocyclohexene, by chlorinating the cycloalkene in the coexistence o...  
JP3044829B2  
JP3044830B2  
JP3044828B2  
JP2000136153A
To provide a method for producing cyclopentyl chloride, capable of profitably producing the cyclopentyl chloride in a high yield by reacting cyclopentene with hydrogen chloride. This method for producing cyclopentyl chloride comprises re...  
JP2000119203A
To provide a new hydrofluorocarbon composition having excellent distillation recovering property for reducing environmental pollution or a convenience of re-using and also provide a method for its recovery.This heptafluorocyclopentane co...  
JP2000086549A
To obtain an organic electroluminescent element excellent in luminous efficacy and capable of emitting high luminance by placing at least one layer containing a specific fluoranthene derivative between a pair of electrodes. This organic ...  
JP2000086548A
To produce the subject compound by a method suitable for a large industrial scale production by reducing a dihalogenohexafluorocyclopentene with hydrogen gas by using a specific catalyst. A compound of formula I (x is a halogen or H) [1,...  
JP2000080051A
To effectively obtain 1,1,9,9-tetrabromo-[2,2]-paracyclophane in a short time without using carbon tetrachloride as the solvent which is difficult to use in an industrial scale by carrying out the bromination of a specific paracyclophane...  
JP2000072698A
To provide a method for producing octachlorocyclopentene, by which the metals used as a catalyst can be readily separated and removed from the reaction product. The method for producing octachlorocyclopentene by chlorinating hexachlorocy...  

Matches 651 - 700 out of 1,226