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    • 7. 发明授权
    • Process for preparing pyrryl-2-acetonitriles
    • 制备吡咯-2-乙腈的方法
    • US3882146A
    • 1975-05-06
    • US35578573
    • 1973-04-30
    • ETHYL CORP
    • WIEGAND KARL E
    • C07D207/32C07D207/337C07D27/22
    • C07D207/337
    • A process for producing pyrryl-2-acetonitriles by reacting in a homogeneous system a 2-(N,N-dialkylaminomethyl)-pyrrole with an alkylating agent such as dimethylsulfate, methyl iodide or benzyl chloride forming a quaternary salt and reacting the resultant reaction mixture with an aqueous alkali metal cyanide solution such as aqueous sodium cyanide in which the reaction is conducted in a substantially inert solvent selected from oxygen- and nitrogen-containing aliphatic hydrocarbons boiling in the range from about 50* to about 130*C, for example, acetonitrile, tetrahydrofuran, acetone, etc.
    • 通过在均相体系中使2-(N,N-二烷基氨基甲基) - 吡咯与烷基化剂如硫酸二甲酯,甲基碘或苄基氯反应形成季盐,制备吡咯-2-乙腈的方法,并使所得反应混合物 与碱金属氰化物水溶液如氰化钠水溶液反应,其中反应在基本惰性的溶剂中进行,所述惰性溶剂选自沸点在约50℃至约130℃范围内的含氧和含氮脂族烃,例如, 乙腈,四氢呋喃,丙酮等