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公开(公告)号:US07129384B2
公开(公告)日:2006-10-31
申请号:US11142980
申请日:2005-06-02
申请人: John C. Parks , David H. Knoebel , Lawrence M. Jenkins , George H. Ransford , Gary L. Bowman, Jr. , Saadat Hussain
发明人: John C. Parks , David H. Knoebel , Lawrence M. Jenkins , George H. Ransford , Gary L. Bowman, Jr. , Saadat Hussain
IPC分类号: C07C25/00
CPC分类号: B01J19/26 , B01J2219/00051 , B01J2219/00094 , B01J2219/00101 , B01J2219/00162 , C07C17/12 , C07C25/18 , C08K3/2279 , C08K5/03 , C08K2201/014
摘要: This invention relates to a novel process which comprises feeding a mixture formed from diphenylethane and bromine to a stirrable reaction mass comprised of bromine and a bromination catalyst to yield a decabromodiphenylethane wet cake which can be most economically treated to provide a high quality decabromodiphenylethane product.
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公开(公告)号:US07087272B2
公开(公告)日:2006-08-08
申请号:US10473332
申请日:2002-03-07
CPC分类号: C07C49/755 , C07C22/08 , C07C23/18 , C07C25/22 , C07C25/24 , C09K19/32 , Y10T428/10
摘要: The invention relates to fluorinated fluorene derivatives of negative DC anisotropy, of the formula I R1—(—A1—Z1—)k1—(—A2—Z2—)k2—W—(—Z3—A3—)k3—(—Z4—A4—)k4—R2I in which W denotes the sub-formula L1 and L2, independently of one another, are H, F, Cl, —CH2F, —CHF2 or —CF3, with the proviso that L1 and L2 are not both H, L3 and L4, independently of one another, are H or F, and R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, Z4, k1, k2, k3 and k4 are as defined above. The invention furthermore relates to liquid-crystalline media and to optical and electro-optical display elements.
摘要翻译: 本发明涉及负直流各向异性的氟化芴衍生物,式I <βin-line-formula description =“In-line Formulas”end =“lead”?> R 1 - ( - - - - - - - - - - - - - - - - - - ( - 2 - - - - - - - - - - - - - - - - - - - - - - ( - Z - SUP> 4 u> 4 u> u> u> u> 其中W表示子公式L 1和L 2彼此独立的“公式”end =“tail”?>是H,F,Cl, -CH 2 2 F,-CHF 2或-CF 3 3,条件是L 1和L 2, SUP> 2 SUP>不是H,L 3和L 4都彼此独立地是H或F,R 1, SUP>,R 2 2,A 1,A 2,A 3,A 4, Z 1,Z 1,Z 2,Z 3,Z 4,K 1,K 2,K 3和K 4 如上所述。 本发明还涉及液晶介质和光学和电光显示元件。
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公开(公告)号:US06930216B2
公开(公告)日:2005-08-16
申请号:US10659590
申请日:2003-09-10
CPC分类号: C07C17/12 , C07C25/125
摘要: A method for the nuclear chlorination of ortho-xylene using a chlorinating agent in the presence of at least one Friedel-Crafts catalyst and chloro-substituted 2,8-dimethylphenoxathiin as co-catalyst. The co-catalyst used is preferably tetrachlorinated 2,8-dimethylphenoxathiin, in particular 1,3,7,9-tetrachloro-2,8-dimethylphenoxathiin of the formula
摘要翻译: 在至少一种Friedel-Crafts催化剂和氯取代的2,8-二甲基苯氧硫蛋白作为助催化剂的存在下,使用氯化剂对邻二甲苯进行核氯化的方法。 所用的助催化剂优选为四氯化的2,8-二甲基苯氧硫蛋白,特别是1,3,7,9-四氯-2,8-二甲基苯氧硫蛋白
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公开(公告)号:US6075171A
公开(公告)日:2000-06-13
申请号:US155176
申请日:1998-09-22
IPC分类号: C07C1/32 , C07C13/465 , C07C13/48 , C07C17/35 , C07C25/22 , C07F7/08 , C07F17/00 , C07C22/00 , C07C25/00
CPC分类号: C07C1/326 , C07C17/35 , C07C25/22 , C07F17/00 , C07C2102/08
摘要: Novel 2-substituted 7-haloindenes and methods for synthesizing such indents are described. The 2-substituted 7-haloindenes may be coupled with any aryl group to produce a metallocene catalyst intermediate.
摘要翻译: PCT No.PCT / US98 / 02345 Sec。 371日期:1998年9月22日 102(e)日期1998年9月22日PCT提交1998年2月5日PCT公布。 公开号WO98 / 33752 日期1998年8月6日描述了新颖的2-取代的7-卤代茚和用于合成这种印痕的方法。 2-取代的7-卤代茚可以与任何芳基偶联以产生茂金属催化剂中间体。
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公开(公告)号:US5608135A
公开(公告)日:1997-03-04
申请号:US211983
申请日:1994-08-15
申请人: Jeffrey Schwartz , Yumin Liu
发明人: Jeffrey Schwartz , Yumin Liu
IPC分类号: A62D3/00 , A62D3/33 , A62D3/34 , A62D3/36 , A62D3/37 , A62D101/22 , B01D53/86 , C02F1/70 , C07C17/23 , C07C209/36 , C07C209/42 , C07G99/00 , C07C25/18 , C07C25/00
CPC分类号: A62D3/37 , A62D3/34 , B01D53/8662 , B01D53/8668 , C02F1/70 , C07C17/23 , C07C209/36 , C07C209/42 , A62D2101/22 , A62D2203/04
摘要: The chlorine content in a chlorinated hydrocarbon in the presence or absence of air and moisture can be reduced by bringing the chlorinated hydrocarbon into contact with a dechlorination reagent which comprises (i) a complex of a substantially nontoxic metal having at least two oxidation states and (ii) a reducing agent which reductively returns the complex from its second oxidation step to its first oxidation stage. A representative embodiment involves bis-(.eta..sup.5 -cyclopentadienyl)titanium dichloride and sodium tetrahydridoborate.
摘要翻译: PCT No.PCT / US93 / 03529 Sec。 371日期:1994年8月15日 102(e)日期1994年8月15日PCT提交1993年4月14日PCT公布。 出版物WO93 / 21117 日期:1993年10月28日氯化烃中存在或不存在空气和水分的氯含量可以通过使氯化烃与脱氯试剂接触来降低,所述脱氯试剂包括(i)至少具有至少 两种氧化态和(ii)还原剂,其将络合物从其第二氧化步骤还原至其第一氧化阶段。 代表性的实施方案涉及双((η)5-环戊二烯基)二氯化钛和四氢化硼酸钠。
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公开(公告)号:US5466881A
公开(公告)日:1995-11-14
申请号:US232550
申请日:1994-04-22
申请人: Michael Pies , Helmut Fiege , Lothar Puppe , Josef Kasbauer
发明人: Michael Pies , Helmut Fiege , Lothar Puppe , Josef Kasbauer
CPC分类号: C07C17/358
摘要: In the preparation of m-chloroaromatics by isomerizing corresponding o- and/or p-chloroaromatics in the liquid phase over zeolites, the activity of the zeolites remains at a high level for a particularly long time if the process is carried out in the presence of from 1 to 30 mol % of hydrogen, based on the chloroaromatics used.
摘要翻译: 在通过在液相中相对于沸石异构化相应的O-和/或对氯异构体的m-氯代芳族化合物的制备中,沸石的活性在高水平下保持特别长的时间,如果该方法在 基于所使用的氯芳烃,为1至30mol%的氢。
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公开(公告)号:US5426222A
公开(公告)日:1995-06-20
申请号:US292149
申请日:1994-08-17
申请人: Scott E. Wargo , John P. Cannady
发明人: Scott E. Wargo , John P. Cannady
IPC分类号: C07B39/00 , C07C17/12 , C07C25/00 , C07C41/22 , C07C43/225 , C07C303/32 , C07C309/06 , C07C309/39 , C07C53/15 , C07C53/16
CPC分类号: C07C303/32 , C07C17/12
摘要: The present invention relates to an improved method for the preparation of iodonium salts. More specifically, the present invention relates to an improved method for the production of symmetric or asymmetric diaryliodonium triflate (trifluoromethane sulfonate) salts. The diaryliodonium salts of the present invention are useful as photoacid catalysts for use in acid-sensitive polymerization and in curing systems such as radiation curable release coating compositions.
摘要翻译: 本发明涉及一种制备碘鎓盐的改进方法。 更具体地说,本发明涉及制备对称或不对称二芳基碘鎓三氟甲磺酸盐(三氟甲烷磺酸盐)盐的改进方法。 本发明的二芳基碘盐可用作用于酸敏感聚合的光酸催化剂,以及用于固化体系如辐射固化脱模涂料组合物。
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88.
公开(公告)号:US5262556A
公开(公告)日:1993-11-16
申请号:US879238
申请日:1992-05-06
IPC分类号: C07C25/18 , C07C41/30 , C07D213/61 , C07F5/02 , C07F7/08 , C09K19/04 , C09K19/14 , C09K19/30 , C09K19/40 , C07F5/04 , C07C25/00
CPC分类号: C09K19/404 , C07C25/18 , C07C41/30 , C07D213/61 , C07F5/025 , C07F7/0818 , C09K19/0403 , C09K19/14 , C09K19/3028 , C09K2019/0407
摘要: The invention relates to a process for the reaction of fluorinated or chlorinated aromatics with electrophiles at the ortho position relative to the fluorine or chlorine atom, characterized in that a strong base is added to a mixture of the fluorinated or chlorinated aromatic and the electrophile.
摘要翻译: 本发明涉及氟化或氯化芳族化合物与相对于氟或氯原子的邻位的亲电体反应的方法,其特征在于将强碱加入氟化或氯化芳族化合物和亲电子试剂的混合物中。
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公开(公告)号:US4873027A
公开(公告)日:1989-10-10
申请号:US245940
申请日:1988-09-19
申请人: Teruo Umemoto , Yoshihiko Gotoh
发明人: Teruo Umemoto , Yoshihiko Gotoh
IPC分类号: C08F8/00 , C07C17/26 , C07C22/08 , C07C25/00 , C07C67/00 , C07C301/00 , C07C305/00 , C07C305/06 , C07C309/02 , C07C309/04 , C07C309/06 , C07C309/28 , C07C309/30 , C07C309/39 , C07C309/40 , C08F8/18 , C08F8/20
CPC分类号: C07C309/00 , C07C25/00
摘要: Fluoroalkylaryliodonium compounds having the formula (I): ##STR1## wherein AR, A and Rf are as defined above, are disclosed. The fluoroalkylaryliodonium compounds of the present invention are useful as intermediates for producing N-fluoroalkylanilines or derivatives thereof which are important precursors for fluorine-containing disperse azo dyes having an excellent resistance to light.
摘要翻译: 公开了具有式(I)的氟烷基芳基碘化合物:其中AR,A和Rf如上所定义。 本发明的氟烷基芳基碘化合物可用作生产具有优异耐光性的含氟分散偶氮染料的重要前体的N-氟烷基苯胺或其衍生物的中间体。
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公开(公告)号:US4831199A
公开(公告)日:1989-05-16
申请号:US57650
申请日:1987-06-09
申请人: Toshihiro Suzuki , Chizu Komatsu
发明人: Toshihiro Suzuki , Chizu Komatsu
摘要: A process for producing a halobenzene represented by the formula: ##STR1## where R is a lower alkyl group, a lower alkoxy group or a halogen atom, and X is a halogen atom, which comprises halogenating a benzene represented by the formula: ##STR2## where R is as defined above, in a liquid phase in the presence of a catalyst, characterized in that the catalyst is a combination of an aliphatic carboxylic acid component and a zeolite having a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of from 3 to 8 and a pore size of from 6 to 10 .ANG..
摘要翻译: 一种制备由下式表示的卤代苯的方法:其中R是低级烷基,低级烷氧基或卤原子,X是卤素原子,其中包括将由式 :其中R如上定义,在催化剂存在下的液相中,其特征在于催化剂是脂族羧酸组分和SiO 2 / Al 2 O 3摩尔比为1:1的沸石的组合 3至8,孔径为6至10安培。
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