PROCESS FOR THE PREPARATION OF AN N-ALKYL LACTAM WITH IMPROVED COLOUR QUALITY
    1.
    发明申请
    PROCESS FOR THE PREPARATION OF AN N-ALKYL LACTAM WITH IMPROVED COLOUR QUALITY 审中-公开
    方法用于生产N-烷基酰胺类抗生素与改善颜色质量

    公开(公告)号:WO2007115943A3

    公开(公告)日:2008-03-27

    申请号:PCT/EP2007053008

    申请日:2007-03-29

    CPC classification number: C07D201/18 C07D207/267 C07D211/76 C07D223/10

    Abstract: Process for the preparation of an N-alkyl lactam with improved colour quality, where 0.01 to 10% by weight of a C 1-10 -alcohol or a compound which releases 0.01 to 10% by weight of a C 1-10 -alcohol is added to the N-alkyl lactam. Mixture comprising at least 99.0% by weight of an N-alkyl lactam and in the range from 100 to 5000 ppm by weight of a C 1-10 -alcohol or of an acetal, aminal or an ortho ester which releases in the range from 100 to 5000 ppm by weight of a C 1-10 -alcohol.

    Abstract translation: 一种制备N-烷基内酰胺过程具有改善的颜色质量,这是N-烷基内酰胺为0.01〜10重量是C 1-10 醇的%或含0的化合物 01至10重量是C 的1-10%释放醇,加入。 混合物包含按重量计为C 1-10 醇或缩醛,缩醛胺,或原酸酯的N-烷基内酰胺类的和在100〜5000ppm的范围内的至少99.0重量%, 按重量计为C 1-10 的/释放在100至5000ppm的范围内的醇。

    USE OF 1,5-DIMETHYLPYRROLIDONE
    3.
    发明申请
    USE OF 1,5-DIMETHYLPYRROLIDONE 审中-公开
    1,5-二甲基吡咯烷酮的用途

    公开(公告)号:WO2008012231A2

    公开(公告)日:2008-01-31

    申请号:PCT/EP2007057347

    申请日:2007-07-17

    CPC classification number: C07D207/267

    Abstract: The use of 1,5-dimethylpyrrolidone as a solvent, diluent, extractant, detergent, degreaser, absorbent and/or dispersant, especially as a partial or complete replacement for N-methyl-2-pyrrolidone (NMP), chlorinated hydrocarbons and/or ethers.

    Abstract translation: 使用1,5-二甲基吡咯烷酮作为溶剂,稀释剂,萃取剂,清洁剂,脱脂剂,吸收剂,和/或分散剂,特别是作为一个部分或完全替代为N-甲基-2-吡咯烷酮(NMP),氯代烃和/或醚。

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