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    Preparation of .alpha.,.alpha.-dialkoxy ketones
    12.
    发明授权
    Preparation of .alpha.,.alpha.-dialkoxy ketones 失效
    （ALPHA），（ALPHA） - 二羟基酮的制备

    公开(公告)号：US5159117A

    公开(公告)日：1992-10-27

    申请号：US747575

    申请日：1991-08-20

    申请人： Guenter Wegner ,  Stefan Karbach ,  Hubert Smuda ,  Eckhard Hickmann ,  Reiner Kober ,  Rainer Seele ,  Thomas Zierke

    发明人： Guenter Wegner ,  Stefan Karbach ,  Hubert Smuda ,  Eckhard Hickmann ,  Reiner Kober ,  Rainer Seele ,  Thomas Zierke

    IPC分类号： C07C45/68 ,  C07C45/71 ,  C07C49/175 ,  C07C49/255 ,  C07C49/517 ,  C07C49/84 ,  C07D307/46 ,  C07D333/22

    CPC分类号： C07D333/22 ,  C07C45/68 ,  C07C45/71 ,  C07C49/175 ,  C07C49/255 ,  C07C49/517 ,  C07C49/84 ,  C07D307/46

    摘要： A process for preparing .alpha.,.alpha.-dialkoxy ketones of the formula I ##STR1## where R.sup.1 and R.sup.2 are each, independently of one another, hydrogen, C.sub.1 -C.sub.20 -alkyl, C.sub.3 -C.sub.20 -cycloalkyl, C.sub.4 -C.sub.30 -cycloalkylakyl, C.sub.9 -C.sub.30 -alkylcycloalkyl, unsubstituted or C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy-, halogen-, C.sub.1 -C.sub.4 -haloalkyl-, C.sub.1 -C.sub.4 -haloalkoxy-, phenyl-, phenoxy-, halophenyl-, halophenoxy- and/or cyano-substituted aryl, C.sub.7 -C.sub.20 -aralkyl or heterocyclyl,R.sup.2 is also ##STR2## R.sup.3 and R.sup.4 are each, independently of one another, C.sub.1 -C.sub.20 -alkyl, C.sub.3 -C.sub.20 -cycloalkyl, aryl, C.sub.7 -C.sub.20 -arylalkyl, or together are an unsubstituted or C.sub.1-C.sub.4 -alkyl- substituted C.sub.2 -C.sub.7 -alkylene chain andR.sup.5 is R.sup.1 or together with R.sup.1 is an unsubstituted or C.sub.1 -C.sub.4 -alkyl-substituted C.sub.2 -C.sub.7 -alkylene chain,which entails reacting ketones or aldehydes of the formula II ##STR3## with nitrites of the formula IIIR.sup.3/4 --(NO.sub.2).sub.n (III)where n is 1 or 2, and n is 2 when R.sup.3 and R.sup.4 together are an unsubstituted or C.sub.1 -C.sub.4 -alkyl-substituted C.sub.2 -C.sub.7 -alkylene chain, with the proviso that the nitrite radicals are located at the termini, or with a mixture of alcohol of the formula IVR.sup.3/4 --(OH).sub.n IVwhere n is 1 or 2, and n is 2 when R.sup.3 and R.sup.4 together are an unsubstituted or C.sub.1 -C.sub.4 -alkyl-substituted C.sub.2 -C.sub.7 -alkylene chain, with the proviso that the hydroxyl group is located at the terminus, and dinitrogen trioxide in a molar ratio of 2:1 in the presence of an acid catalyst at from 0.degree. to 170.degree. C.

    摘要翻译： 制备式I的α，α-二烷氧基酮的方法，其中R 1和R 2各自独立地为氢，C 1 -C 20 - 烷基，C 3 -C 20 - 环烷基，C 4 -C 30 - 环烷基，C 9 -C 30 - 烷基环烷基，未取代的或C 1 -C 8 - 烷基，C 1 -C 8 - 烷氧基 - ，卤素 - ，C 1 -C 4卤代烷基 - ，C 1 -C 4 - 卤代烷氧基 - ，苯基 - ，苯氧基 - ，卤代苯基 - ，卤代苯氧基 - 和/或氰基取代的芳基，C 7 -C 20 - 芳烷基或杂环基，R 2也是R 3和R 4彼此独立地为C 1 -C 20 - 烷基，C 3 -C 20 - 环烷基，芳基， 或者一起是未取代的或C 1 -C 4烷基取代的C 2 -C 7亚烷基链，R 5是R 1或与R 1一起是未取代的或C 1 -C 4烷基取代的C 2 -C 7亚烷基链，其中 需要使式II（II）的酮或醛与式III R3 / 4-（NO2）n（III）的亚硝酸盐反应，其中n为1或2，n为2，当R3和R4一起为 未取代的或C 1 -C 4烷基取代的C 2 -C 7 - 亚烷基链 条件是亚硝酸根自由基位于末端，或与式IV R3 / 4-（OH）n IV的醇的混合物，其中n为1或2，n为2，当R 3和R 4一起为未取代的或 C1-C4烷基取代的C2-C7-亚烷基链，条件是羟基位于末端，二氧化二氮在摩尔比为2:1的酸催化剂存在下，0℃至 170℃

    Thiophene compounds
    18.
    发明授权
    Thiophene compounds 失效
    噻吩化合物

    公开(公告)号：US4937256A

    公开(公告)日：1990-06-26

    申请号：US356552

    申请日：1989-05-25

    申请人： Reiner Kober ,  Joachim Leyendecker ,  Rainer Seele ,  Stefan Karbach ,  Norbert Meyer ,  Karl-Otto Westphalen ,  Bruno Wuerzer ,  Gerhard Wagenblast

    发明人： Reiner Kober ,  Joachim Leyendecker ,  Rainer Seele ,  Stefan Karbach ,  Norbert Meyer ,  Karl-Otto Westphalen ,  Bruno Wuerzer ,  Gerhard Wagenblast

    IPC分类号： A01N43/10 ,  C07D333/22 ,  C07D333/28 ,  C07D333/38 ,  C07D409/14 ,  C07D413/14

    CPC分类号： C07D409/14 ,  A01N43/10 ,  C07D333/22 ,  C07D333/28

    摘要： Thiophene compounds of the formula I ##STR1## where the substituents and the index have the following meanings: n is 0 or 1;R.sup.1 is hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.8 -haloalkyl or C.sub.1 -C.sub.6 -haloalkoxy;R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are cyano, nitro or the groups given for R.sup.1 ;A is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.6 -haloalkoxy, substituted or unsubstituted aryl or heteroaryl, a radical OR.sup.6, whereR.sup.6 is hydrogen, C.sub.1 -C.sub.8 -alkyl, substituted C.sub.1 -C.sub.4 -alkyl, substituted or unsubstituted C.sub.2 -C.sub.8 -alkenyl, substituted or unsubstituted C.sub.3 -C.sub.7 -alkynyl, C.sub.4 -C.sub.9 -cycloalkyl, or a radical NR.sup.7 R.sup.8, where R.sup.7 and R.sup.8 are hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.6 -haloalkyl, C.sub.1 -C.sub.6 -haloalkoxy, substituted or unsubstituted aryl or hetaryl, substituted or unsubstituted C.sub.1 -C.sub.12 -alkylcarbonyl, C.sub.1 -C.sub.12 -haloalkylcarbonyl, substituted or unsubstituted aryl or hetaryl,and their environmentally acceptable salts, processes for their manufacture, and their use.

    摘要翻译： 式I的噻吩化合物（I）其中取代基和指数具有以下含义：n为0或1; R 1是氢，卤素，C 1 -C 8 - 烷基，C 1 -C 6 - 烷氧基，C 1 -C 8 - 卤代烷基或C 1 -C 6 - 卤代烷氧基; R2，R3，R4和R5是氰基，硝基或R1给出的基团; A是氢，C 1 -C 8 - 烷基，C 1 -C 6 - 卤代烷基，C 1 -C 8 - 烷氧基，C 1 -C 6 - 卤代烷氧基，取代或未取代的芳基或杂芳基，基团OR 6，其中R 6是氢，C 1 -C 8烷基， 取代或未取代的C 2 -C 8 - 烯基，取代或未取代的C 3 -C 7 - 炔基，C 4 -C 9 - 环烷基或NR 7 R 8基团，其中R 7和R 8为氢，C 1 -C 8 - 烷基，C 1 -C 8 - C 1-8 - 烷氧基，C 1 -C 6 - 卤代烷基，C 1 -C 6 - 卤代烷氧基，取代或未取代的芳基或杂芳基，取代或未取代的C 1 -C 12烷基羰基，C 1 -C 12 - 卤代烷基羰基，取代或未取代的芳基或杂芳基， 盐，其制造方法及其用途。