Process for the Synthesis of Propargylated Aminoindan Derivatives
    6.
    发明申请
    Process for the Synthesis of Propargylated Aminoindan Derivatives 失效
    炔丙基化氨基茚衍生物的合成方法

    公开(公告)号:US20110054218A1

    公开(公告)日:2011-03-03

    申请号:US12810300

    申请日:2008-12-19

    IPC分类号: C07C211/30 C07B57/00

    摘要: A process for preparing a compound of formula (V) or its enantiomer, which comprises: (a) reacting racemic aminoindan of formula (II) or its enantiomer with allylhalide in presence of a base and an organic solvent at a temperature ranging from 25 C to the reflux temperature of the solvent to give compound of formula (III); Where R is H or (b) reacting the compound (III) with halogenating agent in a suitable organic solvent to give a dihalo compound of formula (IV). (c) treating the dihalo compound (IV) with a suitable base to give compound (V).

    摘要翻译: 一种制备式(Ⅴ)化合物或其对映异构体的方法,其包括:(a)在碱和有机溶剂存在下,在25℃的温度下使式(Ⅱ)的外消旋氨基茚满或其对映异构体与烯丙基卤反应 至溶剂的回流温度,得到式(III)化合物; 其中R为H或(b)使化合物(III)与卤化剂在合适的有机溶剂中反应,得到式(Ⅳ)二卤代化合物。 (c)用合适的碱处理二卤化合物(Ⅳ),得到化合物(Ⅴ)。

    POLYISOBUTYLENES AND PROCESS FOR MAKING SAME
    7.
    发明申请
    POLYISOBUTYLENES AND PROCESS FOR MAKING SAME 有权
    聚异戊二烯和制备方法

    公开(公告)号:US20100130696A1

    公开(公告)日:2010-05-27

    申请号:US12516270

    申请日:2007-11-30

    摘要: The present invention generally relates to alcohol-terminated polyisobutylene (PIB) compounds, and to a process for making such compounds. In one embodiment, the present invention relates to primary alcohol-terminated polyisobutylene compounds, and to a process for making such compounds. In still another embodiment, the present invention relates to polyisobutylene compounds that can be used to synthesize polyurethanes, to polyurethane compounds made via the use of such polyisobutylene compounds, and to processes for making such compounds. In yet another embodiment, the present invention relates to primary alcohol-terminated polyisobutylene compounds having two or more primary alcohol termini and to a process for making such compounds. In yet another embodiment, the present invention relates to primary terminated polyisobutylene compounds having two or more primary termini selected from amine groups or methacrylate groups.

    摘要翻译: 本发明一般涉及醇封端的聚异丁烯(PIB)化合物,以及制备这些化合物的方法。 在一个实施方案中,本发明涉及伯醇封端的聚异丁烯化合物及其制备方法。 在另一个实施方案中,本发明涉及可用于合成聚氨酯的聚异丁烯化合物,通过使用这种聚异丁烯化合物制备的聚氨酯化合物,以及制备这些化合物的方法。 在另一个实施方案中,本发明涉及具有两个或更多个伯醇末端的伯醇封端的聚异丁烯化合物及其制备方法。 在另一个实施方案中,本发明涉及具有两个或更多个选自胺基或甲基丙烯酸酯基团的一级末端的一级封端的聚异丁烯化合物。

    Method of preparing memantine hydrochloride
    10.
    发明申请
    Method of preparing memantine hydrochloride 有权
    美金刚盐酸盐的制备方法

    公开(公告)号:US20070078283A1

    公开(公告)日:2007-04-05

    申请号:US10575948

    申请日:2003-12-19

    IPC分类号: C07C209/08

    CPC分类号: C07C209/08 C07C211/38

    摘要: A novel method of preparing memantine hydrochloride, comprising the following steps: reacting 1-bromo-3,5-dimethyl adamantane and urea/formic acid, with formic acid also acting as the solvent; hydrolyzing with aqueous inorganic acid; alkalifying, extracting and acidifying with hydrochloric acid; finally collecting target compound. The method uses inexpensive raw materials and is performed in homogeneous phase under mild conditions. It can achieve high yield and good product purity, and is suitable for macrochemistry. The purity of crude product is 99.0%, and reaches 99.98% after first recrystallization, yield: 69.5%, mp: 332 C (DSC).

    摘要翻译: 一种制备美金刚盐酸盐的新方法,包括以下步骤:1-溴-3,5-二甲基金刚烷与尿素/甲酸与甲酸作为溶剂反应; 用无机酸水溶液水解; 用盐酸碱化,提取和酸化; 最终收集目标化合物。 该方法使用廉价的原料,并在温和条件下以均相进行。 它可以实现高产率和良好的产品纯度,适用于宏观化学。 粗产物纯度为99.0%,第一次再结晶后达到99.98%,产率为69.5%,mp:332℃(DSC)。