Process for producing 2-(4-hydroxyphenoxy) propionate derivatives
    1.
    发明授权
    Process for producing 2-(4-hydroxyphenoxy) propionate derivatives 失效
    2-(4-羟基苯氧基)丙酸酯衍生物的制备方法

    公开(公告)号:US4537984A

    公开(公告)日:1985-08-27

    申请号:US604156

    申请日:1984-04-26

    IPC分类号: C07C69/712 C07C69/76

    CPC分类号: C07C69/712

    摘要: A process for producing a 2-(4-hydroxyphenoxy) propionate derivative represented by the formula: ##STR1## where Alk is a C.sub.1 -C.sub.5 alkyl group, which comprises reacting a phenoxy propionate derivative represented by the formula: ##STR2## where Alk is as defined above, with a peroxide to obtain a formate derivative represented by the formula: ##STR3## where Alk is as defined above, and hydrolyzing the formate of the formula III.

    摘要翻译: 一种制备式(Ⅰ)所示的2-(4-羟基苯氧基)丙酸酯衍生物的方法,其中Alk是C1-C5烷基,其中包括使由下式表示的苯氧基丙酸酯衍生物: (II)其中Alk如上所定义,与过氧化物反应,得到式(III)表示的甲酸酯衍生物,其中Alk如上所定义,并水解式III的甲酸酯。

    Preparation of high purity di-lower alkyl naphthalenedisulfonates
    6.
    发明授权
    Preparation of high purity di-lower alkyl naphthalenedisulfonates 失效
    制备高纯度二低级烷基萘二磺酸盐

    公开(公告)号:US4434104A

    公开(公告)日:1984-02-28

    申请号:US387605

    申请日:1982-06-11

    IPC分类号: C07C309/73 C07C143/68

    CPC分类号: C07C309/00

    摘要: Disclosed is an improved process for preparing di-lower alkyl naphthalenedisulfonyl by employing a naphthalenedisulfonate chloride and a stoichiometrically excess amount of an aliphatic alcohol and allowing them to react in the presence of an aqueous solution of an alkali. The improved process comprises treating the reaction product from said process with an alkali metal alcoholate and then washing the thus treated reaction product with water to obtain a highly pure product. Also disclosed is a process of limiting the formation of undesirable impurities arising from the reaction of said naphthalenedisulfonyl chloride and said aliphatic alcohol.

    摘要翻译: 公开了一种通过使用萘二磺酸盐氯化物和化学计量过量的脂族醇制备二 - 低级烷基萘磺酰基并使其在碱的水溶液存在下反应的改进方法。 改进的方法包括用碱金属醇化物处理所述方法的反应产物,然后用水洗涤如此处理的反应产物以获得高纯度产物。 还公开了限制由所述萘二磺酰氯和所述脂族醇的反应产生的不希望的杂质的形成的方法。

    Process for producing chain terpene alcohol
    8.
    发明授权
    Process for producing chain terpene alcohol 失效
    生产链萜烯醇的方法

    公开(公告)号:US4107219A

    公开(公告)日:1978-08-15

    申请号:US795789

    申请日:1977-05-11

    CPC分类号: C07C291/04

    摘要: A chain terpene alcohol having the formula ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and respectively represent hydrogen atom or a lower alkyl group is produced by oxidizing a chain unsaturated amine having the formula ##STR2## wherein R.sup.3 represents an alkyl group and heating the product for a thermal rearrangement to form a chain unsaturated hydroxylamine having the formula ##STR3## and then reducing the chain unsaturated hydroxylamine with hydrogen in the presence of a catalyst selected from the group consisting of iron family elements, copper family elements, oxides thereof and copper chromite.

    摘要翻译: 具有下式的链萜醇:其中R 1和R 2相同或不同并分别表示氢原子或低级烷基,其通过氧化具有下式的链不饱和胺来制备: 其中R 3表示烷基并加热该产物进行热重排以形成具有下式(Ⅳ)的链不饱和羟胺,然后用氢还原链不饱和羟胺 存在选自铁族元素,铜族元素,其氧化物和亚铬酸铜的催化剂。