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    PROCESS FOR THE SYNTHESIS OF GLYCOLONITRILE
    3.
    发明公开
    PROCESS FOR THE SYNTHESIS OF GLYCOLONITRILE 有权
    方法合成乙醇腈

    公开(公告)号：EP1833784A1

    公开(公告)日：2007-09-19

    申请号：EP05854937.9

    申请日：2005-12-21

    申请人： E.I. DUPONT DE NEMOURS AND COMPANY

    发明人： FOO, Thomas ,  PANOVA, Anna

    IPC分类号： C07C253/00 ,  C07C255/16

    CPC分类号： C12P7/42 ,  C07C253/00 ,  C07C255/16

    摘要： A process to prepare substantially pure glycolonitrile in an aqueous medium is provided by reacting hydrogen cyanide and formaldehyde. The formaldehyde feed stream is heated prior to reacting with hydrogen cyanide, resulting in an aqueous glycolonitrile solution with fewer impurities, especially less unreacted formaldehyde, than is obtained by other methods. The process enables production of an aqueous glycolonitrile solution that requires less post-reaction purification (if any at all) prior to enzymatically converting the glycolonitrile into glycolic acid.

    NOVEL OXY-NITRILES
    4.
    发明公开
    NOVEL OXY-NITRILES 审中-公开
    新型的氧化氮

    公开(公告)号：EP1687261A1

    公开(公告)日：2006-08-09

    申请号：EP04818703.3

    申请日：2004-11-12

    申请人： Flexitral, Inc.

    发明人： TURIN, Luca

    IPC分类号： C07C255/16 ,  C07C255/33 ,  C07D333/24

    CPC分类号： A23G4/06 ,  A23L27/202 ,  A23L27/2022 ,  C07C255/16 ,  C07D333/16 ,  C11B9/0023 ,  C11B9/0076

    摘要： A compound or a mixture of compounds comprising an aromachemical compound of I the formula: NC-CH2-O-R wherein: R is straight or branched chain alkyl, alkenyl having 1-16 carbon atoms, aryl, aralkyl, alkaryl, thiophenyl or substituted derivatives thereof as well as compositions, products, preparations or articles having improved aroma, fragrance or odor characteristics containing as active ingredient such compound or mixture of compounds.

    摘要翻译： 包含下式Ⅰ的芳香化合物的化合物或化合物的混合物：NC-CH2-OR其中：R是直链或支链烷基，具有1-16个碳原子的链烯基，芳基，芳烷基，烷芳基，噻吩基或其取代衍生物 以及具有改善的芳香，香味或气味特征的组合物，产品，制剂或制品，其包含作为活性成分的这种化合物或化合物的混合物。

    CONTROL OF PRODUCT SELECTIVITY IN THE ADDITION OF HCN TO ARABINOSE
    7.
    发明授权
    CONTROL OF PRODUCT SELECTIVITY IN THE ADDITION OF HCN TO ARABINOSE 失效
    控选择性HCN的加入过程中阿拉伯糖。

    公开(公告)号：EP0402399B1

    公开(公告)日：1993-11-18

    申请号：EP89903372.4

    申请日：1989-02-14

    申请人： UOP

    发明人： ARENA, Blaise, J. P.O. Box 5016

    IPC分类号： C07C255/16

    CPC分类号： C07C253/00 ,  C07C253/32 ,  C07C255/16

    摘要： Hydrogen cyanide addition to a monosaccharide results in a mixture of product cyanohydrins whose ratio can be changed by conducting the hydrogen cyanide addition in the presence of an agent which forms a complex with the monosaccharide. It is preferred to add the elements of hydrogen cyanide to a preformed complex of the monosaccharide. The product selectivity appears to be dependent upon the concentration of the complexing agent up to about one molar proportion of the latter relative to the monosaccharide with the selectivity being invariant thereafter.