Manufacture of alkali metal salts of arabonic acid
    7.
    发明授权
    Manufacture of alkali metal salts of arabonic acid 失效
    制造阿拉伯酸碱金属盐

    公开(公告)号:US4125559A

    公开(公告)日:1978-11-14

    申请号:US798336

    申请日:1977-05-19

    CPC分类号: C07C51/235

    摘要: Alkali metal salts of arabonic acid are manufactured by oxidizing D-hexoses in the presence of alkali metal compounds under specific conditions in respect of temperature, pressure, reaction time, sequence of addition of the individual reactants and mixing.The alkali metal salts of arabonic acid which may be manufactured by the process of the invention are valuable starting materials for the manufacture of vitamins, electro-coating assistants, crop protection agents and metal complexing agents.

    摘要翻译: 通过在特定条件下,在温度,压力,反应时间,各反应物的加入顺序和混合条件下,在碱金属化合物的存在下,氧化D-己糖来制造阿拉伯酸的碱金属盐。

    Optically active diazabicycloalkane derivatives and their use for
protecting crops from the phytotoxic effect of herbicides
    8.
    发明授权
    Optically active diazabicycloalkane derivatives and their use for protecting crops from the phytotoxic effect of herbicides 失效
    光活性二氮杂双环烷烃衍生物及其用途,用于保护作物免受除草剂的植物毒性作用

    公开(公告)号:US4995899A

    公开(公告)日:1991-02-26

    申请号:US334814

    申请日:1989-04-06

    IPC分类号: A01N25/32 C07D487/04

    CPC分类号: C07D487/04 A01N25/32

    摘要: Diazabicycloalkane derivatives of the formula ##STR1## where R is alkyl, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are identical or different and independently of one another are each hydrogen or methyl, X is chlorine or bromine, m is 0 or 1, n is 1 or 2, and p and q are each 0, 1 or 2, the carbon atom functioning as bridgehead having an R configuration, and herbicidal agents containing acetanilides as herbididally active compounds and diazabicycloalkane derivatives as antagonistic agents.

    摘要翻译: 其中R是烷基,R 1,R 2,R 3,R 4,R 5,R 6,R 7和R 8的相同或不同并且彼此独立地是氢或甲基,X是氯或溴,m 0或1,n为1或2,p和q各自为0,1或2,作为具有R构型的桥头堡的碳原子,以及含有作为杀螨活性化合物的乙酰苯胺和二氮杂双环烷烃衍生物作为拮抗剂的除草剂。

    Preparation of oxazolidine-2,4-diones
    9.
    发明授权
    Preparation of oxazolidine-2,4-diones 失效
    制备恶唑烷-2,4-二酮

    公开(公告)号:US4233450A

    公开(公告)日:1980-11-11

    申请号:US40282

    申请日:1979-05-18

    申请人: Herbert Scholz

    发明人: Herbert Scholz

    IPC分类号: C07D263/44

    CPC分类号: C07D263/44

    摘要: A novel process for the preparation of oxazolidine-2,4-diones by reaction of ureas with 2-hydroxycarboxylic acid esters.

    摘要翻译: 通过脲与2-羟基羧酸酯的反应制备恶唑烷-2,4-二酮的新方法。

    Preparation of oxazolidine-2,4-diones
    10.
    发明授权
    Preparation of oxazolidine-2,4-diones 失效
    制备恶唑烷-2,4-二酮

    公开(公告)号:US4220787A

    公开(公告)日:1980-09-02

    申请号:US14770

    申请日:1979-02-23

    申请人: Herbert Scholz

    发明人: Herbert Scholz

    IPC分类号: C07D263/44

    CPC分类号: C07D263/44

    摘要: A process for the preparation of substituted oxazolidine-2,4-diones by treating a corresponding carbamate with a 2-hydroxycarboxylic acid ester at from 80.degree. to 250.degree. C.

    摘要翻译: 通过在80-250℃下用2-羟基羧酸酯处理相应的氨基甲酸酯来制备取代的恶唑烷-2,4-二酮的方法。