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19 条记录 (耗时 0.021 秒)

    Process for the preparation of benzotriazoles
    5.
    发明授权
    Process for the preparation of benzotriazoles 失效
    苯并三唑的制备方法

    公开(公告)号：US5276161A

    公开(公告)日：1994-01-04

    申请号：US582292

    申请日：1990-09-13

    申请人： Helmut Prestel ,  Rudolf Maul

    发明人： Helmut Prestel ,  Rudolf Maul

    IPC分类号： B01J23/40 ,  C01B3/00 ,  C07B61/00 ,  C07D249/20 ,  C09K3/00 ,  C07D249/18

    CPC分类号： C07D249/20 ,  Y02E60/324

    摘要： 2-(2-Hydroxyphenyl)-2H-benzotriazoles of the formula ##STR1## in which R is hydrogen, C.sub.1 -C.sub.12 alkyl or C.sub.1 -C.sub.4 alkoxy, R.sub.1 is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl, phenyl or phenyl-C.sub.1 -C.sub.4 alkyl and R.sub.2 is C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl, phenyl, phenyl-C.sub.1 -C.sub.4 alkyl or a group --C.sub.n H.sub.2n --COOR.sub.3, in which n is 0 to 4 and R.sub.3 is hydrogen or C.sub.1 -C.sub.12 alkyl, can be prepared particularly advantageously by catalytic hydrogenation of a suitable o-nitroazo compound in the presence of a Pt, Pd, Pt/Pd or Rh hydrogenation catalyst and an alkylenediamine or an acyclic or cyclic polyalkylene polyamine in a halogenated or nonhalogenated aromatic hydrocarbon as solvent.

    摘要翻译： 其中R是氢，C 1 -C 12烷基或C 1 -C 4烷氧基，R 1是氢，C 1 -C 12烷基，C 5 -C 6环烷基，苯基或苯基-C 1 -C 4烷氧基的2-（2-羟基苯基）-2H-苯并三唑 C4烷基和R2是C1-C12烷基，C5-C6环烷基，苯基，苯基-C1-C4烷基或基团-CnH2n-COOR3，其中n为0-4，R3为氢或C1-C12烷基，可以特别有利地通过催化 在Pt，Pd，Pt / Pd或Rh氢化催化剂和烷基二胺或非环状或环状聚亚烷基多胺作为溶剂的卤代或非卤代芳族烃存在下氢化合适的邻硝基偶氮化合物。

    Process for the preparation of tris(2,4-ditert-butylphenyl)phosphite
    6.
    发明授权
    Process for the preparation of tris(2,4-ditert-butylphenyl)phosphite 失效
    制备三（2,4-二叔丁基苯基）亚磷酸酯的方法

    公开(公告)号：US5235086A

    公开(公告)日：1993-08-10

    申请号：US759987

    申请日：1991-09-16

    申请人： Rudolf Maul ,  Volker Schenk

    发明人： Rudolf Maul ,  Volker Schenk

    IPC分类号： C07F9/145

    CPC分类号： C07F9/145

    摘要： A process for the preparation of tris-(2,4-ditert-butylphenyl) phosphite from 2,4-ditert-butylphenol and phosphorus trichloride in the presence of catalysts, which comprises carrying out the reaction in an at least three-stage process in which the 2,4-ditert-butylphenol and 40-100% of the catalyst are combined in a preliminary stage and are brought together with the phosphorus trichloride in a first stage, these being allowed to react under normal pressure and at temperatures of 55.degree. to 70.degree. C. for a dwell time of 15 to 40 minutes, the reaction mixture is then reacted in a second stage under normal pressure and at temperatures of over 140.degree. C., remaining amounts of catalyst being added to the first and/or second reaction stage, the reaction mixture is then kept under reduced pressure at temperatures of at least 186.degree. C. in a third reaction stage, and the tris-(2,4-ditert-butylphenyl) phosphite is then isolated from the reaction mixture, the process being carried out in the absence of solvents.

    摘要翻译： 一种在催化剂存在下由2,4-二叔丁基苯酚和三氯化磷制备三（2,4-二叔丁基苯基）亚磷酸酯的方法，包括在至少三步法中进行反应 其中2,4-二叔丁基苯酚和40-100％的催化剂在初级阶段合并，并在第一阶段与三氯化磷一起使其在常压下和在55℃的温度下反应 至70℃，停留时间为15至40分钟，然后将反应混合物在常压下和在超过140℃的温度的第二阶段中反应，将催化剂的剩余量加入到第一和/或 在第二反应阶段，然后在第三反应阶段将反应混合物在至少186℃的温度下保持在减压下，然后从反应混合物中分离出三 - （2,4-二叔丁基苯基）亚磷酸酯， 该过程正在进行中 溶剂。

    Process for the preparation of sterically hindered hydroxybenzylphosphonates
    7.
    发明授权
    Process for the preparation of sterically hindered hydroxybenzylphosphonates 失效
    制备异位羟基苯甲酰磷酸酯的方法

    公开(公告)号：US5171873A

    公开(公告)日：1992-12-15

    申请号：US861704

    申请日：1992-04-01

    申请人： Thomas Kainmuller ,  Rudolf Maul

    发明人： Thomas Kainmuller ,  Rudolf Maul

    IPC分类号： B01J31/04 ,  C07B61/00 ,  C07F9/40

    CPC分类号： C07F9/4056

    摘要： A process for the preparation of hydroxybenzylphosphonates of forula ##STR1## by reacting Mannich base of formula ##STR2## with as trialkyl phosphite of formula ##STR3## wherein R.sub.1 and R.sub.2 are each independently of the other C.sub.1 -C.sub.12 alkyl or, when taken together form a piperidinyl or morpholinyl radical, and R.sub.5, R.sub.6 and R.sub.7 are each independently of one another C.sub.1 -C.sub.4 alkyl, which reaction is carried out in the presence of a carboxylic anhydride (IV).The compounds of formula I may suitably be used as processing stabilizers for plastics.

    摘要翻译： 通过使式（I）的曼尼希碱与式（III）的亚磷酸三烷基酯反应制备式（I）的羟基苄基膦酸盐的方法，其中R1和R2各自独立地为C1 -C 12烷基，或者当一起形成哌啶基或吗啉基时，R 5，R 6和R 7各自独立地为C 1 -C 4烷基，该反应在羧酸酐（IV）的存在下进行。 式I化合物可适当地用作塑料的加工稳定剂。

    Process for the preparation of polyesters from aliphatic dicarboxylic acids and polyalkylpiperidyl diols
    8.
    发明授权
    Process for the preparation of polyesters from aliphatic dicarboxylic acids and polyalkylpiperidyl diols 失效
    从脂族二羧酸和聚烷基哌啶二醇制备聚酯的方法

    公开(公告)号：US4535145A

    公开(公告)日：1985-08-13

    申请号：US626507

    申请日：1984-06-29

    申请人： Eduard Troxler ,  Thomas Kainmuller ,  Rudolf Maul

    发明人： Eduard Troxler ,  Thomas Kainmuller ,  Rudolf Maul

    IPC分类号： C08G63/00 ,  C08G63/66 ,  C08G63/68 ,  C08G63/685 ,  C08G63/688 ,  C08G63/82 ,  C08G63/85 ,  C08G73/06 ,  C08G63/44 ,  C08G73/16

    CPC分类号： C08G63/6856 ,  C08G63/85

    摘要： The invention relates to a novel process for the preparation of compounds of the formula I ##STR1## by polycondensation of a diol of the formula II ##STR2## with a dicarboxylic acid ester of the formula III ##STR3## In the above formulae, the substituents and symbols R.sub.1, R.sub.2, R.sub.3 and n are as defined in claim 1.The process comprises stirring the reaction medium which contains an excess of 2 to 50 mol. %, based on the diol of formula II, of the dicarboxylic acid ester of the formula III, in the presence of at least 0.03 mol. % of a suitable catalyst, until the bulk of the alkanol of the formula R.sub.3 OH formed during the reaction is distilled off, under a pressure of 0.7 to 1.3 bar, and thereafter stirring under a pressure of less than 5 mbar, in the temperature range from 100.degree. to 170.degree. C., and subsequently working up the resultant melt in conventional manner.

    摘要翻译： 本发明涉及通过式II（Ⅱ）的二醇与式III的二羧酸酯缩合制备式I化合物（I）的新方法（IMAGE III）在上式中，取代基和符号R1，R2，R3和n如权利要求1中所定义。该方法包括搅拌含有过量2-50mol的反应介质。 ％，基于式II的二元醇，式III的二羧酸酯在至少0.03mol的存在下反应。 ％的合适的催化剂，直到在反应中形成的式R3OH的烷醇的主体在0.7至1.3巴的压力下蒸馏出，然后在小于5毫巴的压力下搅拌，温度范围为 100℃至170℃，然后以常规方式处理所得的熔体。

    Asymmetric aryl phosphites
    10.
    发明授权
    Asymmetric aryl phosphites 失效
    不对称芳基亚磷酸酯

    公开(公告)号：US5401845A

    公开(公告)日：1995-03-28

    申请号：US212756

    申请日：1994-03-11

    申请人： Rita Pitteloud ,  Peter Hofmann ,  Rudolf Maul ,  Volker Schenk ,  Eduard Troxler ,  Horst Zinke

    发明人： Rita Pitteloud ,  Peter Hofmann ,  Rudolf Maul ,  Volker Schenk ,  Eduard Troxler ,  Horst Zinke

    IPC分类号： C07F9/145 ,  C07F9/146 ,  C07F9/59 ,  C08K5/52 ,  C08K5/526 ,  C08K5/529 ,  C08L23/00 ,  C08L101/00

    CPC分类号： C08K5/526 ,  C07F9/145 ,  C07F9/146 ,  C07F9/591 ,  C07F9/595

    摘要： Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R.sup.1 is C.sub.1 -C.sub.30 alkyl, C.sub.1 -C.sub.18 alkyl substituted by halogen, --COOR.sup.2, --CN, --NR.sup.3 R.sup.4 or by --CONR.sup.3 R.sup.4, C.sub.2 -C.sub.18 alkyl which is interrupted by --NR.sup.5 --, --O-- or --S--, C.sub.3 -C.sub.18 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen, phenyl-C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or R.sub.1 is naphthyl, a radical of the formula ##STR2## R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sup.6 is hydrogen, methyl, allyl or benzyl, R.sup.7 is hydrogen or --OR.sup.9, R.sup.8 is hydrogen or methyl, R.sup.9 is hydrogen or C.sub.1 -C.sub.30 alkyl, R.sup.10 and R.sup.11, independently of one another, are hydrogen or C.sub.1 -C.sub.8 alkyl, and n is 3-6, with the proviso that R.sup.1 is not a phenyl radical which is substituted in both ortho-positions to the carbon atom bonded to the oxygen atom,if x=2, R.sup.1 is C.sub.2 -C.sub.18 alkylene, C.sub.2 -C.sub.18 alkylene which is interrupted by --NR.sup.5, --O-- or --S--, or is a ##STR3## radical, and, if x=3, R.sup.1 is C.sub.4 -C.sub.12 alkanetriyl or a ##STR4## group in which m is 1-4, are suitable as stabilizers for organic materials which are sensitive to thermal, oxidative and/or photoinduced degradation.

    摘要翻译： 式I的化合物（I）其中x为1,2或3，如果x = 1，则R1为C1-C30烷基，被卤素取代的C1-C18烷基，-COOR2，-CN，-NR3R4或 被-CONR 3 R 4，被-NR 5 - ，-O-或-S-，C 3 -C 18烯基，C 5 -C 12环烷基，苯基-C 1 -C 4烷基，未被取代或被C 1 -C 12烷基取代的苯基，卤素， 苯基-C 1 -C 4烷基和/或C 1 -C 4烷氧基，或者R 1为萘基，R 2，R 3，R 4和R 5彼此独立地为氢，C 1 -C 18烷基， C 1 -C 12烷基或苯基-C 1 -C 4烷基，R 6是氢，甲基，烯丙基或苄基，R 7是氢或-OR 9，R 8是氢或甲基，R 9是氢或C 1 -C 30烷基，R 10和R 11彼此独立地是氢 或C 1 -C 8烷基，n为3-6，条件是R 1不是在与氧原子键合的碳原子的两个邻位被取代的苯基，如果x = 2，则R1为C2-C18亚烷基 被-NR 5，-O-或-S-中断的C 2 -C 18亚烷基，或者是a 如果x = 3，则R 1为C 4 -C 12烷基三乙基或其中m为1-4的基团，适用于对热，氧化和/或光诱导降解敏感的有机材料的稳定剂 。