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    • 26. 发明专利
    • Nitration process
    • 硝化过程
    • JPS6115847A
    • 1986-01-23
    • JP13655784
    • 1984-07-03
    • Kowa Co
    • KAWAMURA KIYOSHISHIBUYA MASAYUKIISHIHAMA HIROSHI
    • C07D311/64C07B31/00C07B43/00C07C67/00C07C201/00C07C201/02C07C203/02C07C239/00C07C301/00C07C303/28C07C303/32C07C305/00C07D209/12C07D211/90C07D213/30C07D213/80C07D221/00C07D317/00C07D491/056
    • PURPOSE:To produce a nitric acid ester, in high yield and purity, economically in an industrial scale, easily under mild condition, using a regenerable reagent, by reacting a sulfonic acid ester with an organic quaternary ammonium nitrate. CONSTITUTION:The objective compound of formula III can be produced by reacting (A) the sulfonic acid ester of formula II (R'SO2 is sulfonic acid residue) obtained by the conventional sulfonation process of an alcohol of formula I (R is organic residue) with (B) the organic quaternary ammonium nitrate of formula IV(Q is organic quaternary ammonium residue), e.g. a quaternary alkyl (or substituted alkyl) ammonium nitrate or a nitrate of a strongly basic anion exchange resin having quaternary ammonium as an exchangeable group. The process can be applied to a compound which is difficult to be nitrated by conventional methods. When the process is applied to an optically active compound, a nitrate having inverted absolute configuration is prepared without causing racemization.
    • 目的:通过使磺酸酯与有机季硝酸铵反应,以高产率和纯度生产硝酸酯,在工业规模上经济地容易地在温和条件下使用可再生试剂。 结构式:式Ⅲ的目的化合物可以通过使(A)式Ⅱ的磺酸酯(R'SO 2是磺酸残基)与通式Ⅰ的醇(R是有机残基)的常规磺化方法得到的 与(B)式IV的有机季铵硝酸盐(Q +是有机季铵残基),例如 具有季铵作为可交换基团的强碱性阴离子交换树脂的季烷基(或取代的烷基)硝酸铵或硝酸盐。 该方法可以应用于难以用常规方法硝化的化合物。 当将该方法应用于光学活性化合物时,制备具有反向绝对构型的硝酸盐而不引起外消旋化。