HALOGEN-SUBSTITUTED PYRIDINES 4. 2,3,5-TRICHLOROPYRIDINES SUBSTITUTED AT POSITION 6
Addition of alkyl(aryl)trichloromethylketones to acrylonitrile in the presence of copper(I) chloride gave chlorine-substituted δ-oxonitriles.Cyclization of the latter was effected by the action of dry hydrogen chloride yielding the corresponding chlorine-
Shvekhgeimer, G. A.,Kobrakov, K. I.,Toshkhodzhaev, H. A.