Asymmetric hydrogenation method of a ketonic compound and derivative
    4.
    发明授权
    Asymmetric hydrogenation method of a ketonic compound and derivative 失效
    酮类化合物及其衍生物的不对称加氢方法

    公开(公告)号:US6166257A

    公开(公告)日:2000-12-26

    申请号:US202665

    申请日:1999-03-24

    摘要: The present invention relates to a process for the asymmetric hydrogenation of a ketonic compound and derivative.The invention relates to the use of optically active metal complexes as catalysts for the asymmetric hydrogenation of a ketonic compound and derivative.The process for the asymmetric hydrogenation of a ketonic compound and derivative is characterized in that the asymmetric hydrogenation of said compound is carried out in the presence of an effective amount of a metal complex comprising as ligand an optically active diphosphine corresponding to one of the following formulae: ##STR1##

    摘要翻译: PCT No.PCT / FR97 / 01154 Sec。 371 1999年3月24日第 102(e)1999年3月24日PCT Filted 1997年6月27日PCT公布。 第WO98 / 00375号公报 日期1998年1月8日本发明涉及酮化合物及其衍生物的不对称氢化方法。 本发明涉及光学活性金属络合物作为酮化合物和衍生物的不对称氢化的催化剂的用途。 酮化合物及其衍生物的不对称氢化方法的特征在于,所述化合物的不对称氢化在有效量的金属络合物的存在下进行,所述金属络合物包含对应于下式之一的光学活性二膦配体 :

    Method of executing concurrent tasks by a subsystem managed by a central processor
    10.
    发明授权
    Method of executing concurrent tasks by a subsystem managed by a central processor 有权
    由中央处理器管理的子系统执行并发任务的方法

    公开(公告)号:US07797700B2

    公开(公告)日:2010-09-14

    申请号:US10831539

    申请日:2004-04-23

    CPC分类号: G06F9/52 H04N19/42

    摘要: Systems and methods are provided for processing different concurrent tasks by a subsystem managed by a central processor. Each tasks is comprised of successive messages including a first message, intermediate messages, and a last message. Each intermediate message comprises a subtask parameter and a link to the next message that indicates the time when the next message is to be processed. The central processor and the subsystem are connected to a storage memory and several counters associated with respective tasks. The system and method reduce task disruptions of the system.

    摘要翻译: 提供了系统和方法,用于通过由中央处理器管理的子系统来处理不同的并发任务。 每个任务由包括第一消息,中间消息和最后消息的连续消息组成。 每个中间消息包括子任务参数和指向下一个消息的链接,指示下一个消息要被处理的时间。 中央处理器和子系统连接到存储存储器和与相应任务相关联的若干计数器。 系统和方法减少系统的任务中断。