Production of alkylated hydroxy aromatic compounds
    1.
    发明公开
    Production of alkylated hydroxy aromatic compounds 失效
    生产烷基羟基芳族化合物生产烷基羟基芳族化合物

    公开(公告)号:EP0249415A3

    公开(公告)日:1988-08-31

    申请号:EP87305004

    申请日:1987-06-05

    IPC分类号: C07C37/14 C07C39/06 B01J23/30

    摘要: A process for producing a hydroxy-containing alkylated aromatic compound comprising reacting aromatic compound having at least one hydroxyl group with alkylating agent characterised in that the reaction is conducted in the liquid phase in the presence of heteropoly acid. The heteropolyacid (e.g. silicotungstic acid) catalyst gives good selectivity, conversion and yields, is substantially non-corrosive, and is readily recovered for re-use. A regulated amount of water is preferably maintained in the reaction system for best efficiency.

    摘要翻译: 一种制备含羟基的烷基化芳族化合物的方法,包括使具有至少一个羟基的芳族化合物与烷基化剂反应,其特征在于反应在杂多酸存在下在液相中进行。 杂多酸(例如硅钨酸)催化剂提供良好的选择性,转化率和产率,基本上是非腐蚀性的,并且容易回收再利用。 优选在反应体系中保持调节量的水以获得最佳效率。

    Preparation of 2,2,4-trimethyl-1,2-dihydroquinoline
    2.
    发明公开
    Preparation of 2,2,4-trimethyl-1,2-dihydroquinoline 失效
    Herstellung von 2,2,4-三甲基-1,2-二氢喹啉酮。

    公开(公告)号:EP0172633A1

    公开(公告)日:1986-02-26

    申请号:EP85304647.2

    申请日:1985-06-28

    IPC分类号: C07D215/06

    CPC分类号: C07D215/06

    摘要: The invention provides a process for producing 2,2,4-trimethyl-1,2-dihydroquinoline by the reaction of aniline with at least one member selected from acetone, diacetone alcohol and mesityl oxide, said reaction being carried out in the presence of a catalyst comprising hydrogen fluoride and boron trifluoride.

    摘要翻译: 本发明提供了一种通过苯胺与选自丙酮,双丙酮醇和三甲氧基硅烷的至少一种反应制备2,2,4-三甲基-1,2-二氢喹啉的方法,所述反应在 包含氟化氢和三氟化硼的催化剂。

    Stabilized resin composition
    8.
    发明公开
    Stabilized resin composition 失效
    Stabilisierte Harzzusammensetzung。

    公开(公告)号:EP0481533A1

    公开(公告)日:1992-04-22

    申请号:EP91121541.6

    申请日:1985-07-17

    摘要: Disclosed is a stabilized resin composition comprising a resin; a piperidine derivative represented by the general formula (III)

    wherein R₁ is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R₂ is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, and R₃ and R₄ are each independently an alkyl group having 1 to 12 carbon atoms; a phenol-type antioxidant; and a sulfur-containing antioxidant selected from the group consisting of dilauryl thiodipropionate, dimyristyl thiodipropionate, distearyl thiodipropionate, pentaerythritol tetrakis(3-dodecylthiopropionate) and 3,9-bis(2-dodecylthioethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane, and showing an extremely high stability to heat and oxidation as well as to light.

    摘要翻译: 公开了一种包含树脂的稳定化树脂组合物; 由通式(III)表示的哌啶衍生物其中R 1是氢原子或具有1至3个碳原子的烷基,R 2是氢原子或具有1至12个碳原子的烷基,R 3和 R 4各自独立地为具有1〜12个碳原子的烷基; 苯酚型抗氧化剂; 和选自硫代二丙酸二月桂基酯,硫代二丙酸二肉豆蔻酯,硫代二丙酸二硬脂酯,季戊四醇四(3-十二烷基硫代丙酸酯)和3,9-双(2-十二烷基硫代乙基)-2,4,8,10-四氧杂螺[ 5.5]十一烷,并且对热和氧化以及光的显示出极高的稳定性。

    Process for producing piperidine derivatives
    9.
    发明公开
    Process for producing piperidine derivatives 失效
    Verfahren zur Herstellung von Piperidinderivaten。

    公开(公告)号:EP0172413A2

    公开(公告)日:1986-02-26

    申请号:EP85108956.5

    申请日:1985-07-17

    IPC分类号: C07D211/58 C08K5/00

    摘要: wherein R, is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; R 2 is a hydrogen atom or an alkyl group having 1 to 2 carbon atoms; and R 3 and R 4 is each independently an alkyl group having 1 to 12 carbon atoms, which process comprises reacting a piperidine represented by the general formula (I)

    wherein R 1 and R 2 are as defined above, with a ketone represented by the general formula (II) wherein R 3 and R 4 are as defined above, in the presence of chloroform and alkali and in the presence or absence of a phase transfer catalyst, and a stabilized resin composition comprising a resin, said piperidine derivative, a phenol-type antioxidant and a sulfur-containing antioxidant.

    摘要翻译: ... ...其中R1是氢原子或具有1至13个碳原子的烷基; R2是氢原子或碳原子数1〜2的烷基; 并且R 3和R 4各自独立地为具有1至12个碳原子的烷基,该方法包括使由通式(I)表示的哌啶... 其中R1和R2如上定义,与由 在氯仿和碱存在下和存在或不存在相转移催化剂的情况下,其中R 3和R 4如上定义的通式(II)和包含树脂,所述哌啶衍生物,苯酚 - 型抗氧化剂和含硫抗氧化剂。

    A 2,2,6,6-tetramethylpiperidine derivative, its production and its use as a stabilizer for synthetic resins
    10.
    发明公开
    A 2,2,6,6-tetramethylpiperidine derivative, its production and its use as a stabilizer for synthetic resins 失效
    2,2,6,6-四甲基哌衍生物,其制备及其作为用于合成树脂的稳定剂使用。

    公开(公告)号:EP0127356A2

    公开(公告)日:1984-12-05

    申请号:EP84303148.5

    申请日:1984-05-09

    CPC分类号: C07D211/58 C08K5/3435

    摘要: The invention provides a 2,2,6,6-tetramethylpiperidine derivative represented by the formula (l).
    wherein R, and R 2 independently represent a hydrogen atom or methyl group, R 3 represents an alkylene group having one to four carbon atoms. These derivatives, which may be accompanied by the corresponding monoester derivative when prepared by the described method, are effective photo-stabilizers for synthetic resins.

    摘要翻译: 本发明提供了,... ... worin R1和R2unabhängig表示氢原子或甲基,具有亚烷基的基团R3 darstellt一至四个碳的由式(I)表示的2,2,6,6-四甲基哌衍生物 原子。 其可以通过相应的单酯衍生物陪同当通过所述方法制备的衍生物的论文,是有效的光稳定剂的合成树脂。