Process for the preparation of alkylphosphocholines and the production
thereof in pure form
    2.
    发明授权
    Process for the preparation of alkylphosphocholines and the production thereof in pure form 有权
    制备烷基磷酰胆碱的方法及其纯形式的制备

    公开(公告)号:US6028209A

    公开(公告)日:2000-02-22

    申请号:US296260

    申请日:1999-04-22

    IPC分类号: C07F9/02 C07F9/09 C07F9/10

    CPC分类号: C07F9/091 C07F9/025

    摘要: A process for the preparation of C.sub.14 -C.sub.18 -alkylphosphocholines by reacting an n-alkanol with a chain length of C.sub.14 -C.sub.18 with phosphorus oxychloride in an inert solvent or also without solvent in the presence or absence of a basic substance in a single vessel process and subsequent reaction of the reaction product in an inert solvent with a choline salt in the presence of a basic substance to form phosphoric acid diester chloride, subsequent hydrolysis and isolation of alkylphosphocholine as well as optionally purification using a mixed-bed ion exchanger or in successive steps with an acid ion exchanger and a basic ion exchanger.

    摘要翻译: 通过在惰性溶剂中或在不存在碱性物质的情况下在惰性溶剂中或不存在溶剂的情况下使正链烷醇与C 3 -C 18烷基链与磷酰氯反应制备C14-C18-烷基磷酰胆碱的方法 随后在惰性溶剂中与胆碱盐在碱性物质存在下反应生成磷酸二酯,然后水解和分离烷基磷酸胆碱,以及任选地使用混合床离子交换剂进行纯化或连续 使用酸性离子交换剂和碱性离子交换剂。

    Telecommunity alarm system with a plurality of security surveillance
modems
    7.
    发明授权
    Telecommunity alarm system with a plurality of security surveillance modems 失效
    具有多个安全监控调制解调器的电信报警系统

    公开(公告)号:US5939980A

    公开(公告)日:1999-08-17

    申请号:US820862

    申请日:1997-03-20

    CPC分类号: G08B27/003 G08B27/006

    摘要: A telecommunity alarm system having a plurality of security surveillance modems that can be connected to a telecommunication network via an analog or digital subscriber terminal port, the security surveillance modems forming a group of a predetermined size. The security surveillance modems each have a first memory for storing telephone numbers of the other modems in the group, a second memory for identifying the particular modem and a programmable control unit. The modems are designed to dial automatically, in the event of an alarm, the other security surveillance modems belonging to the group and signal the alarm status.

    摘要翻译: 一种具有多个安全监视调制解调器的电信报警系统,其可以经由模拟或数字用户终端连接到电信网络,安全监视调制解调器形成预定大小的组。 安全监视调制解调器各自具有用于存储组中其他调制解调器的电话号码的第一存储器,用于识别特定调制解调器的第二存储器和可编程控制单元。 调制解调器设计为在发生警报的情况下自动拨打属于该组的其他安全监视调制解调器并发出报警状态。