Non-radioactive carbodiimide precursor to nucleic acid probes
    3.
    发明授权
    Non-radioactive carbodiimide precursor to nucleic acid probes 失效
    核酸探针的非放射性碳二亚胺前体

    公开(公告)号:US4895955A

    公开(公告)日:1990-01-23

    申请号:US199570

    申请日:1988-05-27

    IPC分类号: C07D495/04 C07H21/00

    摘要: This invention relates to carbodiimide compounds of the formula:Z--L--W--N.dbd.C.dbd.N--R.sub.1wherein Z is a signalling moiety or a protecting group; L is a divalent linking group; W is an alkylene group having up to 24 carbon atoms which can be substituted or interrupted by a water solubility enhancing group or cleavable S--S group; and R.sub.1 is an alkyl group having up to 18 carbon atoms. These compounds are useful in the nonradioactive labelling of nucleic acid probes, and methods employing same.

    摘要翻译: 本发明涉及下式的碳二亚胺化合物:Z-L-W-N = C = N-R1其中Z是信号传导部分或保护基; L是二价连接基团; W是具有至多24个碳原子的亚烷基,其可以被水溶性增强基团或可切割的S-S基团取代或中断; 并且R 1是具有至多18个碳原子的烷基。 这些化合物可用于核酸探针的非放射性标记和使用其的方法。

    Process for the production of polybasic acid esters with recovery of
boron trifluoride
    5.
    发明授权
    Process for the production of polybasic acid esters with recovery of boron trifluoride 失效
    通过回收三氟化硼生产多元酸酯的方法

    公开(公告)号:US4973743A

    公开(公告)日:1990-11-27

    申请号:US428093

    申请日:1989-10-27

    CPC分类号: C07C67/465

    摘要: This invention provides a process for preparing an oligomer of at least one polyunsaturated aliphatic C.sub.12-22 monocarboxylic acid ester in the presence of boron trifluoride resulting in a high yield or predominantly trimeric product which, upon hydrolysis, affords a high yield of polybasic, predominantly trimeric, acids. This invention further provides such a process with excellent recovery of the boron trifluoride.

    摘要翻译: 本发明提供一种在三氟化硼存在下制备至少一种多不饱和脂肪族C 12-22单羧酸酯的低聚物的方法,其产生高收率或主要是三聚产物,其在水解时提供高产率的多元,主要是三聚体 ,酸。 本发明还提供了具有优异的三氟化硼回收率的方法。

    Process for separating fatty materials from supported nickel catalysts
    6.
    发明授权
    Process for separating fatty materials from supported nickel catalysts 失效
    从负载的镍催化剂中分离脂肪材料的方法

    公开(公告)号:US4584140A

    公开(公告)日:1986-04-22

    申请号:US682404

    申请日:1984-12-17

    IPC分类号: C11B3/00 C11C1/08 C11B1/10

    CPC分类号: C11C1/08 C11B3/006

    摘要: A process for recovering fatty materials, such as fatty acids and lower alkyl esters thereof, from supported nickel catalyst compositions is provided. For the process, the supported nickel catalyst composition, which may also contain non-nickel containing clays/earths, is extracted with a supercritical fluid, preferably supercritical carbon dioxide, to separate the fatty material from the supported nickel catalyst composition.

    摘要翻译: 提供了从负载的镍催化剂组合物中回收脂肪物质如脂肪酸及其低级烷基酯的方法。 对于该方法,还可以含有非镍的粘土/土的负载的镍催化剂组合物用超临界流体,优选超临界二氧化碳萃取,以将脂肪材料与负载的镍催化剂组合物分离。