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49 条记录 (耗时 0.013 秒)

    BUTENE CONVERSION METHOD AND MONOFLUOROBUTANE PURIFICATION METHOD
    17.
    发明申请
    BUTENE CONVERSION METHOD AND MONOFLUOROBUTANE PURIFICATION METHOD 审中-公开

    公开(公告)号：US20190177253A1

    公开(公告)日：2019-06-13

    申请号：US16323938

    申请日：2017-08-17

    申请人： ZEON CORPORATION

    发明人： Tatsuya SUGIMOTO

    IPC分类号： C07C17/392 ,  C07C17/395

    CPC分类号： C07C17/392 ,  C07C17/26 ,  C07C17/395 ,  C07C19/08 ,  C07C23/04

    摘要： Provided is an industrially simple and cheap method for efficiently removing butene from crude monofluorobutane containing butene without causing substantial decomposition, transformation, or the like of the monofluorobutane. In a provided monofluorobutane purification method, crude monofluorobutane containing butene is brought into contact with trihalomethane in the presence of an alkali aqueous solution to convert the butene to a compound having a higher boiling point than the monofluorobutane, water is subsequently added to a reaction mixture obtained thereby to dissolve a produced salt, an organic layer is separated, and then the separated organic layer is purified by distillation.

    METHOD FOR PRODUCING DIFLUOROCYCLOPROPANE COMPOUND
    19.
    发明申请
    METHOD FOR PRODUCING DIFLUOROCYCLOPROPANE COMPOUND 有权
    二茂铁衍生物的制备方法

    公开(公告)号：US20120277458A1

    公开(公告)日：2012-11-01

    申请号：US13520691

    申请日：2010-10-26

    申请人： Hideki Amii ,  Kojun Oshiro ,  Yoshimichi Morimoto ,  Makoto Matsuura

    发明人： Hideki Amii ,  Kojun Oshiro ,  Yoshimichi Morimoto ,  Makoto Matsuura

    IPC分类号： C07C17/281 ,  C07C67/347 ,  C07F5/04 ,  C07F7/18

    CPC分类号： C07F7/1892 ,  C07C17/272 ,  C07C49/235 ,  C07C49/567 ,  C07C67/293 ,  C07C67/347 ,  C07C2601/02 ,  C07C2602/20 ,  C07C23/28 ,  C07C23/04 ,  C07C23/18 ,  C07C25/18 ,  C07C69/63 ,  C07C69/007 ,  C07C69/74

    摘要： Provided is a method for producing a difluorocyclopropane compound under milder reaction conditions and with high selectivity and high yield. The method for producing a difluorocyclopropane compound of the present invention is characterized by using sodium bromodifluoroacetate as a difluorocyclopropanation agent. With the disclosed method, a difluorocyclopropane compound can be produced under milder reaction conditions and with a higher conversion rate and a higher yield compared to conventional art. Further, by-products can be reduced significantly, thus allowing waste to be greatly reduced. Accordingly, the production method of the present invention is easy to implement industrially (can be employed on an industrial scale) and is thus extremely practical and useful.

    摘要翻译： 本发明提供了在较温和的反应条件下以高选择性和高产率制备二氟环丙烷化合物的方法。 本发明的二氟环丙烷化合物的制造方法的特征在于使用溴二氟乙酸钠作为二氟环丙烷化剂。 利用所公开的方法，与常规技术相比，可以在较温和的反应条件下和更高的转化率和更高的收率下制备二氟环丙烷化合物。 此外，可以显着降低副产物，从而允许废物大大减少。 因此，本发明的制造方法在工业上容易实施（可以在工业规模上使用），因此是非常实用和有用的。