Synthesis of 6-Substituted 2-(N-Acetylamino)pyridines and 2-Aminopyridines by Cyclization of 5-Oximinoalkanenitriles ... Robert J. Vijn,' Henricus J. Arts, Peter J. Maas, and Anna M. Castelijns DSM Research B. V., Department CP-Zntermediates, Geleen, 6160 MD, The Netherlands ... Oxime derivatives of 5-oxoalkanenitriles (Cg chain or longer) were cyclized in most cases with a combination of AcCl and AczO, or AczO and HCl tog-substituted 2-(N-acetylamino) ...