Process for the preparation of bis-N-chloramides
    4.
    发明授权
    Process for the preparation of bis-N-chloramides 失效
    制备双-N-氯酰胺的方法

    公开(公告)号:US4342707A

    公开(公告)日:1982-08-03

    申请号:US947795

    申请日:1978-10-02

    CPC分类号: C07C233/12

    摘要: Bis-N-chloramides of saturated aliphatic dicarboxylic acids are prepared by chlorinating a saturated aliphatic dicarboxylic diamide, the aliphatic residue of which has 4 to 40 carbon atoms, in an aqueous inorganic acid medium, at a temperature between 0.degree. and 40.degree. C.; the chlorination is advantageously carried out in presence of an inorganic salt.

    摘要翻译: 饱和脂肪族二羧酸的双-N-氯酰胺通过在0〜40℃的温度下,在无机酸水溶液中氯化饱和脂肪族二羧酸二酰胺(脂肪族残基为4〜40个碳原子)来制备。 ; 氯化有利地在无机盐的存在下进行。

    AMINOTHIOL COMPOUNDS AND ACYLATED DERIVATIVES THEREOF
    10.
    发明申请
    AMINOTHIOL COMPOUNDS AND ACYLATED DERIVATIVES THEREOF 失效
    氨基丁酸酯化合物及其衍生物

    公开(公告)号:US20030153781A1

    公开(公告)日:2003-08-14

    申请号:US10039557

    申请日:2002-01-08

    IPC分类号: C07C239/06 C07D265/30

    CPC分类号: C07D295/088 C07C327/30

    摘要: The present invention discloses aminothiol compounds and acylated derivatives thereof, which respectively have general formula I and formula II wherein R1-R6 are substitutable ligands. Such compounds can perform as superior catalysts in asymmetric addition reactions of organic zinc and aldehyde. According to the present invention, the compounds is needed only less than 0.02% of main reactants to obtain enantioselectivity higher than 99% enantiomeric excess, whereby the asymmetric reactions can become very economic. 1

    摘要翻译: 本发明公开了分别具有通式I和式II的氨基硫醇化合物及其酰化衍生物,其中R1-R6是可取代的配体。 这种化合物可以在有机锌和醛的不对称加成反应中作为优异的催化剂。 根据本发明,化合物仅需要少于0.02%的主要反应物,以获得高于99%对映异构体过量的对映体选择性,由此不对称反应可变得非常经济。