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    • 71. 发明授权
    • Preparation of N-substituted lactams
    • N-取代的内酰胺的制备
    • US5276165A
    • 1994-01-04
    • US982300
    • 1992-11-25
    • Hans-Juergen WeyerRolf Fischer
    • Hans-Juergen WeyerRolf Fischer
    • B01J21/04B01J23/28B01J23/34B01J23/72B01J23/75C07B61/00C07D201/02C07D201/08C07D207/26C07D207/267C07D209/46C07D209/64C07D223/10C07D225/02C07D207/12C07D221/06
    • C07D201/02C07D201/08C07D207/267
    • A process for the preparation of N-substituted lactams of the formula I ##STR1## where Z is C.sub.2 - to C.sub.10 -alkylene, C.sub.7 - to C.sub.12 -aralkylene, phenylene or naphthylene, andR.sup.1 is C.sub.1 - to C.sub.20 -alkyl, C.sub.6 - to C.sub.10 -aryl or C.sub.7 - to C.sub.12 -aralkyl,by hydrogenating a compound of the formula II ##STR2## where W is C.sub.2 - to C.sub.10 -alkylene, C.sub.2 - to C.sub.10 -alkenylene, C.sub.7 - to C.sub.12 -aralkylene, phenylene or naphthylene, andX and Y together form an oxa or imido bridge of the formula ##STR3## or alternatively are identical or different and are hydroxyl, C.sub.1 - to C.sub.20 -alkoxy, C.sub.6 - to C.sub.10 -aryloxy or C.sub.7 - to C.sub.12 -aralkoxy, and, if X and Y are different, Y, in addition to the abovementioned meanings, may also be hydrogen,at superatmospheric pressure and at elevated temperature in the presence of a catalyst and in the presence of an amine, which comprises using a secondary and/or tertiary amine of the formula IIINH.sub.n R.sub.3-n .sup.1where R.sup.1 is as defined above and n is 0 or 1, or a mixture of a secondary and/or teritary amine of this type with a primary amine of the formula IVR.sup.1 --NH.sub.2 (IV)as the starting material, and carrying out the reaction with addition of water and/or ammonia.
    • 制备式I的N-取代的内酰胺的方法(I)其中Z为C 2至C 10亚烷基,C 7至C 12 - 亚芳基,亚苯基或亚萘基,R 1为C 1 -C 20烷基 C 6 -C 10 - 芳基或C 7 - 至C 12 - 芳烷基,其中W是C 2 - 至C 10 - 亚烷基,C 2至C 10亚烯基,C 7 - 至C 12 - 亚烷基, - 亚烷基,亚苯基或亚萘基,X和Y一起形成下式的氧杂或亚氨基桥,或者可选地相同或不同,为羟基,C 1至C 20 - 烷氧基,C 6至C 10 - 芳氧基或C 7 - 对于C 12 - 芳烷氧基,并且如果X和Y不同,除了上述含义之外,Y还可以是氢,在超大气压和升高的温度下,在催化剂的存在下和在胺的存在下, 包括使用式III NH n R 3-n 1的仲和/或叔胺,其中R 1如上定义并且n为0或1,或者该仲胺和/或叔胺的混合物 以式ⅣR-NH2(Ⅳ)的伯胺为起始原料,并加入水和/或氨进行反应。
    • 72. 发明授权
    • Process for producing cyanovaleric esters and caprolactam
    • 制备氰戊酸酯和己内酰胺的方法
    • US4470928A
    • 1984-09-11
    • US420883
    • 1982-09-21
    • Kohji KimuraToshiro Isoya
    • Kohji KimuraToshiro Isoya
    • C07D201/02C07D201/08C07D223/08C07D223/10C07C120/00C07C121/16C07C121/407
    • C07C255/00C07D201/08Y02P20/52
    • Caprolactam can be produced with an economical advantage without formation of by-products in a high yield by subjecting adipic acid and adiponitrile to interchange reaction at an elevated temperature, adding an alcohol directly to the interchange reaction mixture without isolating the resulting cyanovaleric acid to esterify the cyanovaleric acid with said alcohol into a cyanovaleric ester, reducing the cyanovaleric ester with a catalyst into an aminocaproic ester, heating the aminocaproic ester in a polyhydric alcohol having a higher boiling point than that of caprolactam to convert the ester into caprolactam, isolating the caprolactam by distillation and recycling the liquid distillation residue to the system for heating said polyhydric alcohol and said aminocaproic ester.
    • 可以生产具有经济优势的己内酰胺,而不会通过使己二酸和己二腈在升高的温度下进行交换反应而以高产率形成副产物,直接向交换反应混合物中加入醇,而不分离得到的氰基戊酸酯化 将氰基戊酸与所述醇反应成氰基戊酸酯,用催化剂将氰基戊酸酯还原成氨基己酸酯,加热沸点高于己内酰胺的多元醇中的氨基己酸酯将酯转化为己内酰胺,将己内酰胺转化为己内酰胺 蒸馏并将液体蒸馏残余物再循环到用于加热所述多元醇和所述氨基己酸酯的体系中。
    • 77. 发明授权
    • Azetidine derivatives
    • 氮杂环丁烷衍生物
    • US4007202A
    • 1977-02-08
    • US547948
    • 1975-02-07
    • Jan VerweijHong Sheng Tan
    • Jan VerweijHong Sheng Tan
    • C07D205/08A61K31/545C07D201/02C07D205/095C07D207/46C07D209/48C07D401/12C07D403/12C07D501/08C07D501/10C07D501/30C07D501/60C07D207/12
    • C07D209/48C07D207/46
    • Novel azetidine derivatives of the formula ##STR1## wherein R.sub.1 is an acylamido group, R.sub.2 is selected from the group consisting of ##STR2## wherein R.sub.4, R.sub.5 and R.sub.6 are individually selected from the group consisting of hydrogen, lower alkyl and lower alkenyl, n is 2 or 3 and -- in the case when formula IIB is a phenyl - this group may carry one to four substituents selected from the group consisting of halogen, lower alkyl, lower alkenyl and phenyl, and R.sub.3 is lower alkyl optionally substituted with 1 or 2 phenyls which phenyl groups may be substituted with nitro and the dotted lines of formula IIB indicate the optional presence of double bonds and a process for their preparation and process for the preparation of cephalosporanic acid derivatives using the azetidines of formula I as intermediates.
    • 新颖的式Ⅰa的氮杂环丁烷衍生物,其中R 1是酰氨基,R 2选自其中R 4,R 5和R 6各自独立地选自下列的组合:IIA IIB IIC IID 由氢,低级烷基和低级烯基组成的组,n为2或3, - 在式IIB为苯基的情况下,该基团可以携带一至四个选自以下的取代基:卤素,低级烷基,低级 烯基和苯基,R3是任选被1或2个苯基取代的低级烷基,该苯基可以被硝基取代,式IIB的虚线表示双键的任选存在,以及它们的制备方法和制备方法 使用式I的氮杂环丁烷的头孢烷酸衍生物作为中间体。