One-pot synthesis of 2-amino-3-cyanopyridine derivatives catalyzed by ytterbium perfluorooctanoate [Yb(PFO)3]
摘要:
A family of 2-amino-3-cyanopyridine derivatives are synthesized from aldehydes, ketones, malononitrile, and ammonium acetate via one-pot reaction catalyzed by ytterbium perfluorooctanoate [Yb(PFO)(3)]. This procedure tolerates most of substrates and has the advantages of short routine, high yields, and environmentally friendly. Furthermore, the possible mechanism is also proposed. (C) 2010 Elsevier Ltd. All rights reserved.