Catalyst for bisalkoxycarbonylation of olefins, and method for production of succinate derivatives
    2.
    发明授权
    Catalyst for bisalkoxycarbonylation of olefins, and method for production of succinate derivatives 失效
    用于烯烃的双烷氧基羰基化的催化剂和琥珀酸酯衍生物的制备方法

    公开(公告)号:US06288268B1

    公开(公告)日:2001-09-11

    申请号:US09661294

    申请日:2000-09-13

    IPC分类号: C07C6700

    摘要: A catalyst for the bisalkoxycarbonylation of olefins comprising a noble metal compound and a phosphine chalcogenide of the following formula (1): wherein each of R1, R2 and R3 is, independently, an alkyl group or an aryl group each of which may have a substituent, and A is a Group 16 element of the Periodic Table; and R1, R2 or R3 may be combined, directly or through a bridging group, with one another where the groups to be combined may be attached either to an identical phosphorus atom or to different phosphorus atoms. Element A includes oxygen, sulfur and selenium atoms. The noble metal compound includes palladium(II) halides and other palladium compounds. The catalyst may further include a copper(I) halide or other copper compound as a co-catalyst. The use of this catalyst can provide the bisalkoxycarbonylation of olefins with efficiency.

    摘要翻译: 用于烯烃的双烷氧羰基化的催化剂,其包含贵金属化合物和下式(1)的膦硫属化物:其中R 1,R 2和R 3各自独立地为可以具有取代基的烷基或芳基 A为元素周期表第16组元素; R 1,R 2或R 3可以直接或通过桥连基团彼此组合,其中待组合的基团可以连接到相同的磷原子或不同的磷原子上。 元素A包括氧,硫和硒原子。 贵金属化合物包括卤化钯(II)和其它钯化合物。 催化剂可以进一步包括作为助催化剂的卤化铜(I)或其它铜化合物。 使用这种催化剂可以有效地提供烯烃的双烷氧基羰基化。

    Catalyst for bisalkoxycarbonylation of olefins, and method for
production of succinate derivatives
    3.
    发明授权
    Catalyst for bisalkoxycarbonylation of olefins, and method for production of succinate derivatives 失效
    用于烯烃的双烷氧基羰基化的催化剂和琥珀酸酯衍生物的制备方法

    公开(公告)号:US6159891A

    公开(公告)日:2000-12-12

    申请号:US332072

    申请日:1999-06-14

    摘要: A catalyst for the bisalkoxycarbonylation of olefins comprising a noble metal compound and a phosphine chalcogenide of the following formula (1): ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 is, independently, an alkyl group or an aryl group each of which may have a substituent, and A is a Group 16 element of the Periodic Table; and R.sup.1, R.sup.2 or R.sup.3 may be combined, directly or through a bridging group, with one another where the groups to be combined may be attached either to an identical phosphorus atom or to different phosphorus atoms. Element A includes oxygen, sulfur and selenium atoms. The noble metal compound includes palladium(II) halides and other palladium compounds. The catalyst may further include a copper (I) halide or other copper compound as a co-catalyst. The use of this catalyst can provide the bisalkoxycarbonylation of olefins with efficiency.

    摘要翻译: 用于烯烃的双烷氧羰基化的催化剂,其包含贵金属化合物和下式(1)的膦硫属化物:其中R 1,R 2和R 3各自独立地为可以具有取代基的烷基或芳基 A为元素周期表第16组元素; R 1,R 2或R 3可以直接或通过桥连基团彼此组合,其中待组合的基团可以连接到相同的磷原子或不同的磷原子上。 元素A包括氧,硫和硒原子。 贵金属化合物包括卤化钯(II)和其它钯化合物。 催化剂可以进一步包括作为助催化剂的卤化铜(I)或其它铜化合物。 使用这种催化剂可以有效地提供烯烃的双烷氧基羰基化。

    PLAYBACK DEVICE AND METHOD THEREFOR
    4.
    发明申请
    PLAYBACK DEVICE AND METHOD THEREFOR 审中-公开
    播放装置及其方法

    公开(公告)号:US20070097818A1

    公开(公告)日:2007-05-03

    申请号:US11553696

    申请日:2006-10-27

    IPC分类号: G11B19/00

    CPC分类号: G11B19/28

    摘要: According to this invention, there is provided a playback device including a control unit which causes a rotational speed control unit to control the rotational speed of a drive unit on the basis of a first reference signal such that the rotational speed of the drive unit becomes almost equal to a rotational speed with which second data can be played back from a second recording area, by causing a playback unit to move to a first recording area of a disc-like recording medium and causing a selection unit to select the first reference signal, and then causes the rotational speed control unit to control the rotational speed of the drive unit on the basis of a second reference signal by causing the playback unit to move to the second recording area and causing the selection unit to select the second reference signal.

    摘要翻译: 根据本发明,提供了一种重放装置,包括:控制单元,其使转速控制单元基于第一参考信号来控制驱动单元的转速,使得驱动单元的转速变为几乎 等于通过使重放单元移动到盘状记录介质的第一记录区域并使选择单元选择第一参考信号的从第二记录区域再现第二数据的转速, 然后使转速控制单元通过使重放单元移动到第二记录区域并使选择单元选择第二参考信号,基于第二参考信号来控制驱动单元的转速。