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    PROCESS TO INCREASE THE FRACTION OF TRANS-ISOMERS OF A DI-AMINO-COMPOUND
    2.
    发明公开
    PROCESS TO INCREASE THE FRACTION OF TRANS-ISOMERS OF A DI-AMINO-COMPOUND 审中-公开

    公开(公告)号：EP3546445A1

    公开(公告)日：2019-10-02

    申请号：EP19163730.5

    申请日：2019-03-19

    申请人： BASF SE

    发明人： WLOCH, Sebastian ,  SCHULZ, Lukas ,  PANCHENKO, Alexander ,  WEIDERT, Jan-Oliver

    IPC分类号： C07C209/86 ,  C07C211/36

    摘要： A process to increase the fraction of trans-isomers of a di-amino-compound selected from 2,4-diamino-1-methylcyclohexane, 2,6-diamino-1-methylcyclohexane or mixtures thereof, and comprising trans-isomers having the two amino groups of the di-amino compound in trans position to the cyclohexane ring as well as cis-isomers having the two amino groups in cis position to the cyclohexane ring wherein a solution comprising the di-amino-compound and an auxiliary compound with at least one hydroxy group having a molecular weight of at maximum 1000 g/mol is prepared, the temperature of the solution is decreased until a suspension comprising crystals is obtained, the crystals are separated from the suspension, and a liquid comprising a trans-enriched di-amino-compound with an increased fraction of trans-isomers is obtained.

    VERFAHREN ZUR HERSTELLUNG VON CIS- UND TRANS-ANGEREICHERTEM MDACH
    6.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CIS- UND TRANS-ANGEREICHERTEM MDACH 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON CIS-UND TRANS-ANGEREICHERTEM MDACH

    公开(公告)号：EP3224235A1

    公开(公告)日：2017-10-04

    申请号：EP15798024.4

    申请日：2015-11-18

    申请人： BASF SE

    发明人： WEIDERT, Jan-Oliver ,  KRAMP, Sandra ,  BENFER, Regina ,  PANCHENKO, Alexander ,  WEICKGENANNT, Andreas ,  GUTFRUCHT, Norbert ,  BREUER, Klaus ,  KOZICKI, Artur ,  BUSCH, Ralph

    IPC分类号： C07C209/86 ,  C07C211/36

    CPC分类号： C07C7/04 ,  B01D3/007 ,  B01D3/10 ,  C07C209/86 ,  C07C211/36 ,  C07C2601/14

    摘要： The invention relates to a method for producing trans-enriched MDACH, characterized in that an MDACH starting mixture is distilled in the presence of an auxiliary agent. Trans-enriched MDACH is distilled, and - the auxiliary agent is an organic compound with o a molar mass of 62 to 500 g/mol, o a boiling point which lies at least 5 °C above the boiling point of cis,cis-2,6-diamino-1-methylcyclohexane, wherein each of the boling points is based on a pressure of 50 mbar, and o 2 to 4 functional groups which independently of one another are an alcohol, primary, secondary, or tertiary amino group, - the MDACH starting mixture contains 0 to 100 wt.% 2,4-diamino-1-methylcyclohexane (2,4-MDACH) and 0 to 100 wt.% 2,6-diamino-1-methylcyclohexane (2,6-MDACH), based on the total quantity of MDACH (= 2,4- and 2,6-MDACH) contained in the MDACH starting mixture, the MDACH starting mixture containing both trans- as well as cis-isomers, and - trans-enriched MDACH is a mixture containing 0 to 100 wt.% 2,4-MDACH and 0 to 100 wt.% 2,6-MDACH, based on the total quantity of MDACH contained in the mixture. The ratio of trans-isomers in the mixture to the total quantity of MDACH contained in the mixture is higher than the ratio of trans-isomers in the MDACH starting mixture to the quantity of MDACH contained in the MDACH starting mixture.

    摘要翻译： 一种制备反式富集MDACH的方法，包括：在助催化剂存在下蒸馏MDACH起始混合物，所述助剂是摩尔质量为62-500g / mol，沸点至少为5℃以上的有机化合物 顺式，顺式-2,6-二氨基-1-甲基环己烷和2-4个官能团的沸点，其各自独立地为醇基或伯，仲或叔氨基。 基于存在于MDACH起始混合物中的MDACH的总量，MDACH起始混合物包含0至100重量％的2,4-MDACH和0至100重量％的2,6-MDACH。 MDACH起始混合物包括反式和顺式异构体。 反式富集的MDACH包含0至100重量％的2,4-MDACH和0至100重量％的2,6-MDACH，其中反式异构体在混合物中的比例高于反式异构体在 MDACH起始混合物。