2-Amino-1-(2,5-dimethoxyphenyl)-butanes
    4.
    发明授权
    2-Amino-1-(2,5-dimethoxyphenyl)-butanes 失效
    2-氨基-1-(2,5-二甲氧基苯基) - 丁烷

    公开(公告)号:US4105695A

    公开(公告)日:1978-08-08

    申请号:US795699

    申请日:1977-05-11

    IPC分类号: C07D209/48 C07C87/28

    摘要: Compounds of the formula ##STR1## wherein R.sup.1 is Cl, Br, (lower)alkylthio or ##STR2## in which R.sup.3 is H or (lower)alkyl including the racemic mixtures and the dextrorotatory and levorotatory isomers, and the pharmaceutically acceptable non-toxic salts thereof have been found to enhance the learning capacity of mammals, including man, and to improve the mental alertness and attitudes of geriatrics without producing the undesirable stimulant side effects associated with the use of amphetamines.

    摘要翻译: 其中R 1是Cl,Br,(低级)烷硫基或者其中R 3是H的(低级)烷基,包括外消旋混合物和右旋和左旋异构体的式(Ⅰ)化合物, 已经发现其毒性盐提高了包括人在内的哺乳动物的学习能力,并且提高了老年医学的心理警觉性和态度,而不产生与使用安非他明相关的不期望的兴奋剂副作用。

    Hydrogenation process
    6.
    发明授权
    Hydrogenation process 失效
    氢化过程

    公开(公告)号:US4125724A

    公开(公告)日:1978-11-14

    申请号:US839947

    申请日:1977-10-06

    申请人: Henry G. Howell

    发明人: Henry G. Howell

    IPC分类号: C07D213/75 C07D241/20

    CPC分类号: C07D213/75

    摘要: An improved and novel process is provided for the reduction of isocyanate groups in organic compounds to formamide groups by catalytic hydrogenation with a noble metal catalyst. The process allows preparation of formamides in consistently high yields from all types of isocyanates.

    摘要翻译: 提供了一种改进和新颖的方法,通过用贵金属催化剂催化氢化将有机化合物中的异氰酸酯基团还原成甲酰胺基团。 该方法允许从所有类型的异氰酸酯以一致的高收率制备甲酰胺。