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    Phosphoro- and phosphonofluorido-thioic acids and their salts
    6.
    发明授权
    Phosphoro- and phosphonofluorido-thioic acids and their salts 失效
    磷酸和磷酸氟尿嘧啶及其盐

    公开(公告)号：US3558269A

    公开(公告)日：1971-01-26

    申请号：US3558269D

    申请日：1968-03-05

    申请人： DU PONT

    发明人： ROESKY HERBERT W

    IPC分类号： C01B25/10 ,  C01D17/00 ,  C01D11/00 ,  C01F1/00

    CPC分类号： C01B25/10 ,  C01B25/00 ,  C01D17/00

    摘要： CLAIMED ARE PHOSPHONOFLUORIDOTHIOIC ACIDS AND THEIR SALTS, USEFUL AS REDUCING AGENTS, OF THE FORMULAS:

    (II) M(+) (-)S-P(=S)(-F)2,

    (III) M(+) (-)S-P(=S)(-F)-S-P(=S)(-F)-S(-) M(+) AND

    (IV) M(+) (-)S-P(=S)(-F)-S-S-P(=S)(-F)-S(-) M(+)

    IN WHICH M IS HYDROGEN, A METAL, OR SPECIFIED TYPES OF ONIUM CATIONS; PREPARATION OF THOSE IN WHICH M IS AN ALKALI METAL BY REACTING P4S10 WITH AN ALKALI METAL FLURIDE IN THE PRESENCE OF (A), FOR (II), ACETRONITRILE, (B), FOR (III), WATER, AND (C), FOR (IV), ETHYLENE GLYCOL DIMETHYL ETHER; AND IN PREPARATION OF (II), WHEN M IS AN ALKALI METAL, BY REACTING SPF3 WITH AN ALKALI METAL FLUORIDE IN THE PRESENCE OF ACETONITRILE.