Method for producing N-methyl-N′-nitroguanidine
    3.
    发明授权
    Method for producing N-methyl-N′-nitroguanidine 有权
    制备N-甲基-N'-硝基胍的方法

    公开(公告)号:US06720451B2

    公开(公告)日:2004-04-13

    申请号:US10169842

    申请日:2002-07-09

    IPC分类号: C07C29100

    CPC分类号: C07C277/08 C07C279/36

    摘要: The present invention relates to a novel process for the preparation of N-methyl-N′-nitroguanidine by reacting nitroguanidine with aqueous methylamine solution buffered by the addition of inorganic or organic acids.

    摘要翻译: 本发明涉及通过硝基胍与加入无机或有机酸缓冲的甲胺溶液反应制备N-甲基-N'-硝基胍的新方法。

    Pyrrolidine compounds and process of preparing
    6.
    再颁专利
    Pyrrolidine compounds and process of preparing 有权
    吡咯烷化合物及其制备方法

    公开(公告)号:USRE36607E

    公开(公告)日:2000-03-07

    申请号:US276220

    申请日:1999-03-25

    摘要: This invention relates to benzolididene compounds of the formula ##STR1## in which R.sup.2 represents the radical ##STR2## in which R.sup.4 and R.sup.5 are identical or different and denote halogen, cyano, ethinyl, trifluoromethoxy, methylthio, nitro, trifluoromethyl or straight-chain or branched alkyl, alkenyl, alkinyl or alkoxy having up to 4 carbon atoms, and one of the substituents optionally represents hydrogen,or a salt thereof.[...]..Iadd., andA represents hydrogen or straight-chain or branched alkyl having up to 8 carbon atoms, or represents phenyl or benzyl which are optionally substituted one to three times by identical or different substituents from the series consisting of hydroxyl, nitro, halogen, cyano, carboxyl, trifluoromethyl, trifluoromethoxy, straight-chain or branched alkoxy having up to 6 carbon atoms or by a group of the formula --NR.sup.6 R.sup.7 or --SO.sub.2 R.sup.8, in whichR.sup.6 and R.sup.7 are identical or different and denote hydrogen, phenyl or straight-chain or branched alkyl having up to 5 carbon atomsandR.sup.8 denotes straight-chain or branched alkyl having up to 4 carbon atoms or phenyl. .Iaddend.

    摘要翻译: 本发明涉及下式的苯偶姻化合物,其中R 2表示其中R 4和R 5相同或不同并且表示卤素,氰基,乙炔基,三氟甲氧基,甲硫基,硝基,三氟甲基或直链或支链烷基,烯基,炔基 或具有至多4个碳原子的烷氧基,其中一个取代基任选代表氢或其盐[和],A表示氢或具有至多8个碳原子的直链或支链烷基,或表示苯基或苄基, 任选地被羟基,硝基,卤素,氰基,羧基,三氟甲基,三氟甲氧基,具有至多6个碳原子的直链或支链烷氧基或通过下式的基团取代的相同或不同的取代基取代一至三次: -NR6R7或-SO2R8,其中R6和R7相同或不同,表示氢,苯基或具有至多5个碳原子的直链或支链烷基,R8表示直链 具有至多4个碳原子的直链或支链烷基或苯基。