Reactions of organic anions. Part 110. Vicarious nucleophilic substitution of hydrogen in nitroarenes with .alpha.-substituted nitriles and esters. Direct .alpha.-cyanoalkylation and .alpha.-carbalkoxyalkylation of nitroarenes
Preparation of nitroaralkyl cyanides and derivatives thereof
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.