Processes for synthesis of 1,3,3,3-tetrafluoropropene
    25.
    发明授权
    Processes for synthesis of 1,3,3,3-tetrafluoropropene 有权
    合成1,3,3,3-四氟丙烯的方法

    公开(公告)号:US07371904B2

    公开(公告)日:2008-05-13

    申请号:US11118504

    申请日:2005-04-29

    摘要: Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene which comprises, in one embodiment, reacting a compound of CF3X1 with a compound of CX2H═CHX3, wherein X1, X2, and X3 are each independently selected from the group consisting of fluorine, chlorine, bromine and iodine, to produce a reaction product comprising a compound of CF3CH═CHX3, wherein X3 is as described above; and when X3 is not fluorine, fluorinating the compound to produce 1,3,3,3-tetrafluoropropene. The process in another embodiment comprises preparing tetrafluoropropene comprising thermally cracking one or more compounds capable of producing a reaction mixture which preferably comprises diflurocarbene radicals and vinylidene fluoride, and converting said reaction mixture into—tetrafluoropropene (1,3,3,3-tetrafluoropropene).

    摘要翻译: 公开了一种用于合成1,3,3,3-四氟丙烯的方法,其包括在一个实施方案中使CF 3 N 1 X 1的化合物与 CX 2 H-CHX 3其中X 1,X 2和X 3, SUP>各自独立地选自氟,氯,溴和碘,以产生包含CF 3 CH-CH 3 3的化合物的反应产物,其中 X 3如上所述; 当X 3不是氟时,氟化该化合物以产生1,3,3,3-四氟丙烯。 在另一个实施方案中的方法包括制备四氟丙烯,其包括热裂化一种或多种能够产生反应混合物的化合物,所述化合物优选包含二氟甲基和偏二氟乙烯,并将所述反应混合物转化为四氟丙烯(1,3,3,3-四氟丙烯)。