Regioselective reaction of 5,6-dialkyl-2-halopyridine-3,4-dicarbonitriles with ammonia
作者:V. N. Maksimova、O. V. Ershov、K. V. Lipin、A. V. Eremkin、O. E. Nasakin
DOI:10.1134/s1070428012030153
日期:2012.3
The reaction of 5,6-dialkyl-2-halopyridine-3,4-dicarbonitriles with alcoholic ammonia under elevated pressure gave 5,6-dialkyl-2-aminopyridine-3,4-dicarbonitriles as a result of nucleophilic replacement of the halogen atom by amino group. 6,7-Dialkyl-4-halo-1H-pyrrolo[3,4-c]pyridine-1,3(2H)-diimines were formed in analogous reaction at room temperature in the presence of potassium carbonate.
5,6-二烷基-2-卤代吡啶-3,4-二腈与醇氨在高压下反应,由于亲核取代卤素原子而得到5,6-二烷基-2-氨基吡啶-3,4-二腈按氨基。在室温下,在碳酸钾存在下,通过类似反应形成6,7-二烷基-4-卤代-1 H-吡咯并[3,4- c ]吡啶-1,3(2 H)-二亚胺。