N-fluorinated sulfonamides
    7.
    发明授权
    N-fluorinated sulfonamides 失效
    N-氟化磺酰胺

    公开(公告)号:US5003074A

    公开(公告)日:1991-03-26

    申请号:US250291

    申请日:1988-09-28

    CPC classification number: C07D275/06 C07B39/00 C07C17/202 C07F7/10

    Abstract: Compounds of formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are H, alkyl or aryl, m and n are 0 or 1, and A is a divalent organic radical which, with (CR.sup.1 R.sup.2).sub.m NF--SO.sub.2 (CR.sup.3 R.sup.4).sub.n groups, forms a 5- to 8-membered ring, are admirably suitable fluorinating agents for fluorinating carbon atoms, especially as stereospecific fluorinating agents, when the compounds contain a chiral carbon atom and are in optically active form. The compounds of formula I are prepared by reacting the corresponding silated sulfonamides, wherein the NF group is replaced by an N-SiR.sup.7 R.sup.8 R.sup.9 group and R.sup.7, R.sup.8 R.sup.9 are each independently C.sub.1 -C.sub.12 alkyl, cyclopentyl, cyclohexyl, benzyl or phenyl, with a fluorinating agent.

    Abstract translation: 式I的化合物其中R 1,R 2,R 3和R 4是H,烷基或芳基,m和n是0或1,并且A是二价有机基团,其与(CR 1 R 2)mNF-SO 2( CR 3 R 4)n基团形成5-至8-元环,当化合物含有手性碳原子并具有光学活性形式时,是适合用于氟化碳原子的氟化剂,特别是作为立体特异性氟化剂。 式I化合物通过使相应的硅烷基磺酰胺反应制备,其中NF基团被N-SiR 7 R 8 R 9基团取代,R 7,R 8 R 9各自独立地是C 1 -C 12烷基,环戊基,环己基,苄基或苯基,与氟化剂 。

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