申请人:ETHYL CORPORATION
公开号:EP0078709A2
公开(公告)日:1983-05-11
Nitroarylalkyl cyanides may be prepared in a convenient manner by reacting a nitroaromatic compound with an alpha, alpha-disubstituted alkyl cyanide, e.g. an alpha, alpha-disubstituted acetonitrile, in a substantially anhydrous aprotic solvent and in the presence of a base so that the nitrile undergoes a nucleophilic substitution on an unsubstituted ring carbon of the nitroaromatic compound during which an alpha-subsituent functions as a leaving group. The nitroaralkyl cyanides formed by the process can be readily converted into derivatives, such as pharmaceuticals.
硝基芳烷基氰化物的制备方法简便易行,硝基芳香族化合物与α、α-二取代烷基氰化物(如α、α-二取代乙腈)在基本无水的无丙烷溶剂中并在碱存在下发生反应,使腈在硝基芳香族化合物的未取代环碳上发生亲核取代反应,其间α-取代基作为离去基团起作用。 通过该工艺形成的硝基芳烷基氰化物可以很容易地转化为衍生物,如药物。