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    VERFAHREN ZUR HERSTELLUNG VON CAPROLACTAM AUS 6-AMINOCAPRONITRIL
    1.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CAPROLACTAM AUS 6-AMINOCAPRONITRIL 有权
    用于生产己内酰胺OFF 6-氨基己腈

    公开(公告)号：EP1280768A1

    公开(公告)日：2003-02-05

    申请号：EP01951465.2

    申请日：2001-04-30

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： BASSLER, Peter ,  BAUMANN, Dieter ,  FISCHER, Rolf-Hartmuth ,  FUCHS, Eberhard ,  MELDER, Johann-Peter ,  OHLBACH, Frank

    IPC分类号： C07D201/08 ,  C07D201/16

    CPC分类号： C07D201/08 ,  C07D201/16

    摘要： The invention relates to a method for producing caprolactam, characterized in that a) a mixture (I) containing 6-aminocapronitrile and water in the liquid phase is converted into a mixture (II) containing caprolactam, ammonia, water, high boilers and low boilers in the presence of a catalyst; b) ammonia is then removed from mixture (II), leaving a mixture (III) containing caprolactam, water, high boilers and low boilers; c) water is then removed from mixture (III) leaving a mixture (IV) containing caprolactam, high boilers and low boilers, and d) a solid (V) containing caprolactam is obtained from mixture (IV) by crystallization, the proportion by weight of caprolactam in the solid (V) being greater than that in the mixture (IV).

    VERFAHREN ZUR HERSTELLUNG VON (2S,4R,9S)-OCTAHYDRO-1H-INDOL-2-CARBONSÄURE UND ZWISCHENPRODUKTE DAFÜR
    8.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON (2S,4R,9S)-OCTAHYDRO-1H-INDOL-2-CARBONSÄURE UND ZWISCHENPRODUKTE DAFÜR 有权
    用于生产（2S，4R，9S）PROCESS八氢-1H-吲哚-2-羧酸和其中间体

    公开(公告)号：EP1140826A1

    公开(公告)日：2001-10-10

    申请号：EP99966978.1

    申请日：1999-12-21

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： EBEL, Klaus ,  OHLBACH, Frank ,  NÜBLING, Christoph

    IPC分类号： C07D209/42 ,  C07D209/08 ,  C07D209/34 ,  C07C223/04 ,  C07C217/52 ,  C07C205/33 ,  C07C205/28 ,  C07C205/29

    CPC分类号： C07D209/42

    摘要： The invention relates to a method for producing (2S,4R,9S)-octahydro-1H-indole-2-carboxylic acid. The invention is characterised in that a. a compound of the formula (I) (R1O)2CH-CH2-CH(OR2)2, wherein R?1 and R2¿ are equal or different and represent C¿1-4?-alkylgroups, is converted with water in the presence of an acid catalyst; b. the 3,3-dialkoxypropionaldehydes of the formula (II) (R?1O)¿2CH-CH2-CHO thus obtained are subjected to a Henry reaction with nitromethane; c. the 4,4-dialkoxy-1-nitro-2-butanol of the formula (III) (R1O)2CH-CH2-CHOH-CH2-NO2 thus obtained is dehydrated; d. the nitroolefin IV thus obtained is converted into the corresponding trans-4-(2,2-dialkoxyethyl)-5-nitro-1-cyclohexene V by means of a Diels-Alder reaction; e. the substance V thus obtained is hydrated to form corresponding trans-4-(2,2-dialkoxyethyl)-5-amino-1-cyclohexane VI; f. the compound VI is subjected to a racemic division and the (1S,2R)-1-amino-2-(2,2-dialkoxyethyl)-cyclohexane VII is obtained in the enantiomerically pure form by enzymatic racemic division; g. the compound VII obtained thereby is hydrolised to form the corresponding acetal VIII; h. the aldehyde obtained thereby is converted into the corresponding nitrile VIII and i. said nitrile is cyclised to form the (2S,4R,9S)-octahydro-1H-indole-2-carboxylic acid.

    VERBESSERTES VERFAHREN ZUR HERSTELLUNG VON HEXAMETHYLENDIAMIN
    9.
    发明公开
    VERBESSERTES VERFAHREN ZUR HERSTELLUNG VON HEXAMETHYLENDIAMIN 有权
    改进工艺用于生产己二胺

    公开(公告)号：EP1107942A1

    公开(公告)日：2001-06-20

    申请号：EP99944417.7

    申请日：1999-08-17

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： FISCHER, Rolf ,  BASSLER, Peter ,  LUYKEN, Hermann ,  OHLBACH, Frank ,  MELDER, Johann-Peter ,  MERGER, Martin ,  ANSMANN, Andreas ,  REHFINGER, Alwin ,  VOIT, Guido

    IPC分类号： C07C209/48 ,  C07C211/12

    CPC分类号： C07C209/48 ,  C07C211/12

    摘要： The invention relates to a method for the catalytic hydrogenation of adipodinitrile to hexamethylene diamine at a high temperature and at high pressure in the presence of catalysts based on elementary iron as the catalytic component, and ammonia as a solvent. The method is characterised in that a) adipodinitrile is hydrogenated at temperatures of 70 to 220 °C and at pressures of 100 to 400 bar in the presence of catalysts based on elementary iron as the catalytic component, and ammonia as a solvent to produce a mixture containing adipodinitrile, 6-aminocapronitrile, hexamethylene diamine and high boilers, until the sum of the 6-aminocapronitrile and adipodinitrile concentration is 1 to 50 wt. % in relation to the ammonia-free hydrogenation mixture; b) ammonia is separated out of the hydrogenation discharge; c) hexamethylene diamine is separated out of the remaining mixture; d) 6-aminocapronitrile and adipodinitrile are separated from the high boilers together or separately and e) 6-aminocapronitrile, adipodinitrile or their mixtures are returned to step a).