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公开(公告)号:US4766238A
公开(公告)日:1988-08-23
申请号:US92527
申请日:1987-09-03
IPC分类号: C07C17/363 , C07C69/63
CPC分类号: C07C17/363
摘要: A novel fluorine-containing compound of the formula:(CF.sub.3).sub.2 CHCO.sub.2 CClX.sup.1 X.sup.2 (I)wherein X.sup.1 and X.sup.2 are, the same or different, each a hydrogen atom or a chlorine atom, which is useful as the starting material for production of 2-trifluoromethyl-3,3,3-trifluoropropene.
摘要翻译: 一种新颖的式(CF 3)2 CHCO 2 CClX 1 X 2(I)的含氟化合物,其中X 1和X 2各自为氢原子或氯原子,其可用作2-三氟甲基的制备原料 -3,3,3-三氟丙烯。
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公开(公告)号:US4739123A
公开(公告)日:1988-04-19
申请号:US921207
申请日:1986-10-21
IPC分类号: C07C17/363 , C07C17/00
CPC分类号: C07C17/363
摘要: Process for preparing 2-trifluoro-methyl-3,3,3-trifluoropropene.
摘要翻译: 制备2-三氟甲基-3,3,3-三氟丙烯的方法。
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3.
公开(公告)号:US5315044A
公开(公告)日:1994-05-24
申请号:US942178
申请日:1992-09-09
CPC分类号: C07C17/10
摘要: A process for production of 1,1,1-trifluoro-2,2-dichloroethane comprising chlorination of 1,1,1-trifluoro-2-chloroethane with chlorine gas in the presence or absence of a metal salt as a catalyst.
摘要翻译: 包括1,1,1-三氟-2,2-二氯乙烷的制备方法,包括在存在或不存在金属盐作为催化剂的情况下用氯气氯化1,1,1-三氟-2-氯乙烷。
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4.
公开(公告)号:US5132473A
公开(公告)日:1992-07-21
申请号:US586373
申请日:1990-09-21
IPC分类号: C07B61/00 , B01J27/10 , B01J27/12 , C07C17/00 , C07C17/154 , C07C17/158 , C07C19/12 , C07C67/00
CPC分类号: C07C17/158
摘要: A process for production of 1,1,1-trifluoro-2,2-dichloroethane comprising reacting 1,1,1-trifluoro-2-chloroethane with hydrogen chloride and oxygen in the presence of a metal salt as a catalyst.
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公开(公告)号:US4929318A
公开(公告)日:1990-05-29
申请号:US247354
申请日:1988-09-21
CPC分类号: C07C17/23
摘要: A halogenated alkane of the formulaR--CHXY (I)wherein R is a trifluoromethyl group, a chlorodifluoromethyl group, a dichlorofluoromethyl group, a chlorofluoromethyl group, a difluoromethyl group, a fluoromethyl group or a 2-chloro-1,1,2,2-tetrafluoroethyl group, and X and Y are the same or different and a hydrogen atom, a chlorine atom or a fluorine atom can be prepared at a high yield by reducing a halogenated alkane of the formula:R--CClXY (II)wherein R, X and Y are the same as defined above with the irradiation of light having a wavelength of not longer than 300 nm in an oxygen-free reaction atmosphere in the presence of 3 to 10 moles of an alcohol per mole of the halogenated alkane of the formula (II) or in the presence of 0.1 to 10 moles of an alcohol per mole of the halogenated alkane of the formula (II) and an alkali.
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6.
公开(公告)号:US5171899A
公开(公告)日:1992-12-15
申请号:US586372
申请日:1990-09-21
IPC分类号: C07C17/10
CPC分类号: C07C17/10
摘要: A process for production of 1,1,1-trifluoro-2,2-dichloroethane comprising chlorinationo f 1,1,1-trifluoro-2-chloroethane with chlorine gas in the presence or absence of a metal salt as a catalyst.
摘要翻译: 在存在或不存在金属盐作为催化剂的情况下,制备包含氯化氯化1,1,1-三氟-2-氯乙烷的1,1,1-三氟-2,2-二氯乙烷的方法。
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公开(公告)号:US5075508A
公开(公告)日:1991-12-24
申请号:US381951
申请日:1989-07-19
IPC分类号: C07C67/00 , C07C209/00 , C07C209/74 , C07C211/15 , C07C211/24 , C25B3/08
CPC分类号: C25B3/08
摘要: Triperfluoroalkylamines of the formula: ##STR1## wherein, Rf.sup.1 and Rf.sup.2 are each a perfluoroalkyl group having 1 to 4 carbon atoms, and Rf.sup.3 is a perfluoroalkyl group having 3 to 11 carbon atoms, have good thermal stability, good voltage resistance, good fluidity at low temperature and low surface energy and which produce no toxic perfluoroisobutene.
摘要翻译: 具有下式的三全氟烷基胺:其中,Rf1和Rf2分别为具有1至4个碳原子的全氟烷基,Rf3为具有3至11个碳原子的全氟烷基,具有良好的热稳定性,良好的耐电压性, 在低温下具有良好的流动性和低的表面能,并且不产生有毒的全氟异丁烯。
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公开(公告)号:US5688379A
公开(公告)日:1997-11-18
申请号:US424518
申请日:1995-10-24
CPC分类号: C07C17/204
摘要: The present invention provides a process for preparing a perfluoroalkyl bromide characterized by reacting a perfluoroalkyl iodide represented by the formula C.sub.n F.sub.2n+1 I wherein n is an integer of 6 to 10 with bromine in a light-transmitting reactor with exposure to light and heating at 120.degree. to 180.degree. C. while simultaneously removing IBr resulting as a by-product by separation of a layer.
摘要翻译: PCT No.PCT / JP93 / 01738 Sec。 371日期1995年10月24日第 102(e)日期1995年10月24日PCT 1993年11月30日PCT公布。 公开号WO94 / 12453 日期:1994年6月9日本发明提供了制备全氟烷基溴的方法,其特征在于使具有式C n F 2n + 1 I表示的全氟烷基碘(其中n为6至10的整数)与溴在具有光照的透光反应器中反应 并在120〜180℃下加热,同时除去作为副产物产生的IBr,通过分层。
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公开(公告)号:US4493800A
公开(公告)日:1985-01-15
申请号:US506358
申请日:1983-06-21
申请人: Yasuhisa Furutaka , Sadamu Ishii
发明人: Yasuhisa Furutaka , Sadamu Ishii
IPC分类号: C07C255/49 , C07C120/04
CPC分类号: C07C255/00 , C07C253/14
摘要: A process for preparing a trifluoromethylbenzonitrile derivative of the formula: ##STR1## wherein X is hydrogen, lower alkyl, halogenated lower alkyl, lower alkoxy, nitro, hydroxyl, amino, cyano, carboxyl or sulfon which comprises reacting trifluoromethylhalogenobenzene of the formula: ##STR2## wherein X is as defined above, and Y is halogen with copper (I) cyanide in a solvent selected from the group consisting of hexamethylphosphoric triamide, N-methylpyrrolidone and a mixture thereof in the presence of a catalyst selected from the group consisting of (A) bromine, (B) iodine, (C) a combination of bromine or iodine and metallic copper and (D) copper (II) bromide, by which process the compound (I) is prepared in a good yield, and by-products are produced in a lower yield than the conventional processes.
摘要翻译: 制备下式的三氟甲基苄腈衍生物的方法:其中X是氢,低级烷基,卤代低级烷基,低级烷氧基,硝基,羟基,氨基,氰基,羧基或磺酸,其包括使式 :其中X如上所定义,Y是在选自六甲基磷酰三胺,N-甲基吡咯烷酮及其混合物的溶剂中的氰化铜(I)的卤素,所述溶剂在选择的催化剂存在下 由(A)溴,(B)碘,(C)溴或碘的组合和金属铜和(D)溴化铜(II)组成的组,通过该方法制备化合物(I) 产率和副产物的产量低于常规方法。
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公开(公告)号:US06514425B1
公开(公告)日:2003-02-04
申请号:US09297320
申请日:1999-07-02
申请人: Akira Sekiya , Tetsuya Takagaki , Shinsuke Morikawa , Shunichi Yamashita , Tsuyoshi Takaichi , Yasuo Hibino , Yasuhisa Furutaka , Masami Iwasaki , Norifumi Ohtsuka
发明人: Akira Sekiya , Tetsuya Takagaki , Shinsuke Morikawa , Shunichi Yamashita , Tsuyoshi Takaichi , Yasuo Hibino , Yasuhisa Furutaka , Masami Iwasaki , Norifumi Ohtsuka
IPC分类号: C03C1500
CPC分类号: H01L21/3065
摘要: Disclosed is fluorocarbon-based dry etching gas which is free of global environmental problems and a dry etching method using a plasma gas obtained therefrom. The dry etching gas includes a fluorinated ether of carbon, fluorine, hydrogen and oxygen and having 2-6 carbon atoms.
摘要翻译: 公开了没有全球环境问题的基于碳氟化合物的干蚀刻气体,以及使用由其获得的等离子体气体的干蚀刻方法。 干蚀刻气体包括碳,氟,氢和氧的具有2-6个碳原子的氟化醚。
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