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791 条记录 (耗时 0.028 秒)

    Preparation of N-alkenylureas
    32.
    发明授权
    Preparation of N-alkenylureas 失效
    N-烯基脲的制备

    公开(公告)号：US5739398A

    公开(公告)日：1998-04-14

    申请号：US675585

    申请日：1996-07-03

    申请人： Jochem Henkelmann ,  Marc Heider ,  Thomas Ruhl

    发明人： Jochem Henkelmann ,  Marc Heider ,  Thomas Ruhl

    IPC分类号： C07D239/10 ,  B01J31/02 ,  C07B61/00 ,  C07C273/02 ,  C07C273/18 ,  C07C275/20

    CPC分类号： C07C273/1863

    摘要： A process for preparing N-alkenylureas of the general formula I ##STR1## where R.sup.1 and R.sup.2 are hydrogen, C.sub.1 - to C.sub.40 -alkyl, C.sub.2 - to C.sub.40 -alkenyl, C.sub.3 - to C.sub.20 -cycloalkyl, C.sub.4 - to C.sub.20 -alkylcyc1oalkyl, C.sub.4 - to C.sub.20 -cycloalkylalkyl, aryl, C.sub.7 - to C.sub.20 -alkylaryl or C.sub.7 - to C.sub.20 -aralkyl, or aryl, C.sub.7 - to C.sub.20 -alkylaryl or C.sub.7 - to C.sub.20 -aralkyl which are mono- to pentasubstituted by C.sub.1 - to C.sub.8 -alkyl, C.sub.1 - to C.sub.8 -alkoxy or halogen, together are a C.sub.2 - to C.sub.10 -alkylene chain which is unsubstituted or mono- to hexasubstituted by C.sub.1 - to C.sub.8 -alkyl, and R.sup.3 and R.sup.4 are hydrogen or C.sub.1 - to C.sub.8 -alkyl, by reaction of ureas of the general formula II ##STR2## where R.sup.1 and R.sup.2 have the abovementioned meanings, with an alkenyl carboxylate of the general formula III ##STR3## where R.sup.3 and R.sup.4 have the abovementioned meanings and R.sup.5 is hydrogen, C.sub.1 - to C.sub.40 -alkyl, C.sub.3 - to C.sub.20 -cycloalkyl, C.sub.4 - to C.sub.20 -alkylcycloalkyl, aryl, C.sub.7 - to C.sub.20 -alkylaryl, C.sub.7 - to C.sub.20 -aralkyl, or aryl or C.sub.7 - to C.sub.20 -aralkyl which is mono- to trisubstituted by C.sub.1 - to C.sub.8 -alkyl, at from 0.degree. to 180.degree. C. and from 0.01 to 10 bar, by carrying out the reaction in the presence of a base is described.

    摘要翻译： 制备通式I（I）的N-烯基脲的方法，其中R 1和R 2是氢，C 1至C 40烷基，C 2至C 40链烯基，C 3 -C 20环烷基，C 4 -C 20 - 烷基环烷基，C 4 -C 20 - 环烷基烷基，芳基，C 7 -C 20 - 烷基芳基或C 7 -C 20 - 芳烷基，或被C 1 - 单取代成五取代的芳基，C 7 -C 20 - 烷基芳基或C 7 -C 20 - 芳烷基 -C 8 - 烷基，C 1 -C 8 - 烷氧基或卤素，一起是未被取代或被C 1〜C 8 - 烷基单取代或六取代的C 2〜C 10 - 亚烷基链，R 3和R 4是氢或C 1〜 通过其中R1和R2具有上述含义的通式II的脲（II）与通式III的烯基羧酸酯（III）的反应，其中R 3和R 4具有 R 5是氢，C 1 -C 40 - 烷基，C 3 -C 20 - 环烷基，C 4 -C 20 - 烷基环烷基，芳基，C 7 -C 20烷基芳基，C 7 -C 20 - 芳烷基或芳基或C 7 - 被单 - 三取代的C 20 - 芳烷基 描述了通过在碱的存在下进行反应的0至180℃和0.01至10巴的C 1 -C 8烷基。

    Process for the preparation of asymmetrically substituted ureas, carbamates, thiocarbamates and substituted isocyanates
    36.
    发明授权
    Process for the preparation of asymmetrically substituted ureas, carbamates, thiocarbamates and substituted isocyanates 失效
    用于制备不对称取代的脲，氨基甲酸酯，硫代氨基甲酸酯和取代的异氰酸酯的方法

    公开(公告)号：US5481035A

    公开(公告)日：1996-01-02

    申请号：US85815

    申请日：1993-07-06

    申请人： Martin Mullner ,  Gerhard Stern ,  Markus Rossler

    发明人： Martin Mullner ,  Gerhard Stern ,  Markus Rossler

    IPC分类号： C07C273/18 ,  C07C333/04

    CPC分类号： C07C273/1818 ,  C07C273/1827 ,  C07C333/04

    摘要： Process for the preparation of asymmetrically substituted ureas, carbamates, thiocarbamates or substituted isocyanates by reaction of an adduct of isocyanic acid and a tertiary amine with a primary and secondary amine, an alcohol, a thiol or a compound having one or two non-cumulated olefinic double bonds, and a process for the preparation of N-mono- or N,N-disubstituted ureas by reaction of ammonium isocyanates with a primary or secondary amine in a diluent.

    摘要翻译： 通过异氰酸和叔胺的加合物与伯胺和仲胺，醇，硫醇或具有一个或两个非累积烯烃的化合物的反应制备不对称取代的脲，氨基甲酸酯，硫代氨基甲酸酯或取代的异氰酸酯的方法 双键，以及通过异氰酸铵与稀释剂中的伯胺或仲胺反应来制备N-单或N，N-二取代的脲的方法。

    Preparation of aromatic ureas which contain a thioether or sulfonyl group
    39.
    发明授权
    Preparation of aromatic ureas which contain a thioether or sulfonyl group 失效
    含有硫醚或磺酰基的芳香脲的制备

    公开(公告)号：US5380941A

    公开(公告)日：1995-01-10

    申请号：US130176

    申请日：1993-10-01

    申请人： Bernd Siegel ,  Manfred Patsch

    发明人： Bernd Siegel ,  Manfred Patsch

    IPC分类号： C07C315/04 ,  C07C317/04 ,  C07C317/28 ,  C07C319/20 ,  C07C323/12 ,  C07C323/44 ,  C07D295/20 ,  C07C275/28 ,  C07C273/18

    CPC分类号： C07C323/44 ,  C07C317/28

    摘要： A process for preparing ureas of the formula ##STR1## where the ring A can be substituted and benzo-fused andn is 0 or 2,R.sup.4 and R.sup.5 are hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,L is unsubstituted or substituted C.sub.2 -C.sub.4 -alkylene, or NR.sup.5 and L are together the radical of the formula ##STR2## and Z is hydroxyl or a radical which can be eliminated under alkaline reaction conditions,by reacting a phenylurea of the formula ##STR3## where R.sup.4 and the ring A each have the abovementioned meanings, with an amine of the formula ##STR4## where n, R.sup.5, L and Z each have the abovementioned meanings, at from 80.degree. to 180.degree. C. in the presence or absence of an inert diluent is described.

    摘要翻译： 其中环A可以被取代和苯并稠合并且n是0或2，R4和R5是氢，C1-C4-烷基或苯基，L是未取代的或取代的C2- C 4 - 亚烷基，或NR 5和L一起是式“基团”，Z是羟基或可以在碱性反应条件下被除去的基团，通过使式（Ia）的苯基脲与环A 各自具有上述含义，在存在或不存在惰性稀释剂的情况下，使用式为“IMAGE”的胺，其中n，R5，L和Z各自具有上述含义，80至180℃。