Aqueous phase process for preparing N-substituted imidazoles
    1.
    发明授权
    Aqueous phase process for preparing N-substituted imidazoles 失效
    制备N-取代咪唑的水相方法

    公开(公告)号:US5877326A

    公开(公告)日:1999-03-02

    申请号:US914187

    申请日:1997-08-19

    摘要: A process for preparing substituted imidazoles of the formula I ##STR1## R.sup.1, R.sup.2 and R.sup.3 are identical or different and are each hydrogen, halogen, NO.sub.2, CN or a C.sub.1 -C.sub.20 -hydrocarbon radical which is unsubstituted or substituted by one or more halogens or R.sup.1 and R.sup.2 together are members of a 3- to 20-membered hydrocarbon ring which is unsubstituted or substituted by one or more halogens and/or C.sub.1 -C.sub.8 -alkyl groups and which may contain 1, 2 or 3 heteroatoms from the group consisting of nitrogen, oxygen and sulfur, andR.sup.4 is a C.sub.1 -C.sub.20 -hydrocarbon radical which is unsubstituted or substituted by one or more halogens,comprises using an aqueous phase of the imidazoles of the formula II ##STR2## where R.sup.1, R.sup.2 and R.sup.3 are as defined above with compounds of the formula IIIR.sup.4 --O--R.sup.5 IIIwhereR.sup.4 is as defined above andR.sup.5 is hydrogen or R.sup.4, it being possible in the latter case for the two R.sup.4 substituents to be identical or different,and reacting it at from 200.degree. to 550.degree. C. in the presence of a catalyst comprising oxides and/or phosphates of one or more metals of the 2nd, 3rd and 4th main group and the 4th subgroup of the Periodic Table in the presence or absence of phosphoric acid and/or phosphoric esters.

    摘要翻译: 制备式I的取代咪唑的方法R1,R2和R3相同或不同,各自为氢,卤素,NO2,CN或C1-C20-烃基,其未被取代或被一个或多个 卤素或R 1和R 2一起是3至20元烃环的成员,其未被取代或被一个或多个卤素和/或C 1 -C 8烷基取代,并且可以含有1,2或3个来自该基团的杂原子 由氮,氧和硫组成,R4是未被取代或被一个或多个卤素取代的C 1 -C 20烃基,包括使用式II的咪唑的水相,其中R 1,R 2和 R 3如上所定义,与式III的R4-O-R5III化合物,其中R 4如上定义,R 5是氢或R 4,在后一种情况下,两个R 4取代基可以相同或不同, 在约200℃〜550℃下, 在磷酸和/或磷酸酯存在或不存在的条件下,包含第2,第3和第4主族和第4族的周期表中的一种或多种金属的氧化物和/或磷酸盐。

    Preparation of enol ethers
    2.
    发明授权
    Preparation of enol ethers 失效
    烯醇醚的制备

    公开(公告)号:US5767325A

    公开(公告)日:1998-06-16

    申请号:US755299

    申请日:1996-11-22

    CPC分类号: C07C41/28 C07C67/327

    摘要: A process for the preparation of enol ethers of the general formula I ##STR1## in which R.sup.1,R.sup.2,R.sup.3,R.sup.4,R.sup.5 denote C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.20 alkenyl, or C.sub.7 -C.sub.20 phenylalkyl, R.sup.2,R.sup.3,R.sup.4 denote hydrogen, aryl, cyano, --COOR.sup.5, C.sub.1 -C.sub.12 alkyl monosubstituted to trisubstituted or interrupted by --COOR.sup.5, --C.dbd.O, cyano, or C.sub.1 -C.sub.12 alkoxy, C.sub.1 -C.sub.12 alkyl monosubstituted to trisubstituted by --COOR.sup.5, --C.dbd.O, cyano, or C.sub.1 -C.sub.12 alkyl, or C.sub.7 -C.sub.20 phenylalkyl and R.sup.2 and R.sup.4 or R.sup.3 and R.sup.4 together form a C.sub.3 -C.sub.10 alkylene chain or a C.sub.2 -C.sub.20 alkylidene chain, from acetals or ketals.

    摘要翻译: 制备通式Ⅰ(I)的烯醇醚的方法,其中R 1,R 2,R 3,R 4,R 5表示C 1 -C 20烷基,C 1 -C 20链烯基或C 7 -C 20苯基烷基,R 2,R 3 ,R4表示氢,芳基,氰基,-COOR5,被-COOR5,-C = O,氰基或C1-C12烷氧基单取代或中断的C1-C12烷基,被-COOR5单取代至三取代的C1-C12烷基, C = O,氰基或C 1 -C 12烷基或C 7 -C 20苯基烷基,R 2和R 4或R 3和R 4一起由缩醛或缩酮形成C 3 -C 10亚烷基链或C 2 -C 20亚烷基链。

    Process for preparing N-substituted pyrazoles
    4.
    发明授权
    Process for preparing N-substituted pyrazoles 失效
    制备N-取代吡唑的方法

    公开(公告)号:US5840913A

    公开(公告)日:1998-11-24

    申请号:US913177

    申请日:1997-08-20

    IPC分类号: C07D231/12 C07D521/00

    摘要: A process for the preparation of an N-alkyl- or N-phenylalkyl-substituted pyrazole I by reacting the corresponding N-unsubstituted pyrazole II with an alcohol III of the formula R.sup.1 --OH where R.sup.1 is the same alkyl or phenylalkyl group to be added to the unsubstituted nitrogen group --NH-- of the pyrazole reactant. Both of the reactants, i.e. the pyrazole II and alcohol III compounds, are catalytically reacted in the liquid phase in a molar ratio of from 0.001:1 to 1:1, at temperatures of 50.degree.-400.degree. C. and under a subatmosheric pressure of from 0.8 bar up to a superatmospheric pressure of 250 bar. The catalyst required for this liquid phase reaction is selected as being at least one or more non-heterogeneous acid catalysts, their alkyl esters or their acid anhydrides.

    摘要翻译: PCT No.PCT / EP96 / 00790 371日期1997年8月20日 102(e)日期1997年8月20日PCT 1996年2月27日PCT公布。 公开号WO96 / 27589 日本1996年9月12日制备N-烷基 - 或N-苯基烷基取代的吡唑I的方法,通过使相应的N-未取代的吡唑II与式R1-OH的醇III反应,其中R 1是相同的烷基或 苯基烷基加入到吡唑反应物的未取代的氮基-NH-中。 两种反应物,即吡唑II和醇III化合物,在液相中以摩尔比为0.001:1至1:1,在50-400℃的温度和低于大气压下催化反应 从0.8巴到250巴的超大气压。 该液相反应所需的催化剂选自至少一种或多种非均相酸催化剂,它们的烷基酯或其酸酐。

    Mixtures of polyalkoxylated trimethylolpropane (meth) acrylate
    6.
    发明申请
    Mixtures of polyalkoxylated trimethylolpropane (meth) acrylate 审中-公开
    聚烷氧基化三羟甲基丙烷(甲基)丙烯酸酯的混合物

    公开(公告)号:US20060212011A1

    公开(公告)日:2006-09-21

    申请号:US10551630

    申请日:2004-04-02

    摘要: The present invention relates to novel mixtures of (meth)acrylic esters of polyalkoxylated trimethylolpropane of the formula where AO is for each AO independently at each instance EO, PO or BO where EO is O—CH2-CH2- PO is independently at each instance O—CH2-CH(CH3)- or O—CH(CH3)-CH2- BO is independently at each instance O—CH2-CH(CH2-CH3)- or O—CH(CH2-CH3)-CH2- p1+p2+p3 is 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74 or 75, R1, R2 and R3 are independently H or CH3, a simplified process for preparing these ester mixtures and the use of reaction mixtures thus obtainable.

    摘要翻译: 本发明涉及下式的聚烷氧基化三羟甲基丙烷的(甲基)丙烯酸酯的新混合物,其中AO在每种情况下各自独立地为每个AO,PO或BO,其中EO为O-CH 2 -CH 2 - ,PO各自独立地为O -CH 2 -CH(CH 3) - 或O-CH(CH 3)-CH 2 - BO在每种情况下独立地为O-CH 2 -CH(CH 2 -CH 3) - 或O-CH(CH 2 -CH 3)-CH 2 - + p3为28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51 ,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74或75,R1 ,R2和R3独立地为H或CH3,制备这些酯混合物的简化方法以及由此获得的反应混合物的使用。

    Method for Producing Water-Absorbing Polymers
    8.
    发明申请
    Method for Producing Water-Absorbing Polymers 有权
    吸水聚合物的制造方法

    公开(公告)号:US20080214750A1

    公开(公告)日:2008-09-04

    申请号:US11666962

    申请日:2005-11-16

    IPC分类号: C08F2/04 C08F20/06

    摘要: The invention relates to processes for preparing water absorbing polymers by polymerization of a monomer solution comprising allyl acrylate and/or allyl alcohol, the solution comprising not more than 0.002% by weight of allyl acrylate and/or allyl alcohol, based on acrylic acid, to aqueous monomer solutions for producing water absorbing polymers, to water absorbing polymers, to processes for producing hygiene articles and also to hygiene articles.

    摘要翻译: 本发明涉及通过聚合包含丙烯酸烯丙酯和/或烯丙醇的单体溶液来制备吸水聚合物的方法,该溶液包含不超过0.002%(重量)丙烯酸烯丙酯和/或烯丙醇(基于丙烯酸)至 用于生产吸水聚合物的单体水溶液,吸水聚合物,生产卫生用品的方法以及卫生用品。