名称:
                                Heteroannulation of Nitroketene N,S-Arylaminoacetals with POCl3:  A Novel Highly Regioselective Synthesis of Unsymmetrical 2,3-Substituted Quinoxalines
                             
                            
                                摘要:
                                A novel regioselective route for the synthesis of substituted and fused 3-chloro-2-(methylthio)quinoxalines through POCl3-mediated heteroannulation of a range of alpha-nitroketene N,S-anilinoacetals has been reported.