New procedures for the synthesis of heterocyclic substituted and 2,4-difunctionalized pyrimidines
                                
                                    
                                        作者:Antonio García Martínez、Antonio Herrera Fernández、Florencio Moreno Jiménez、Pablo J Muñoz Martínez、Cristina Alonso Martín、Laksminarayanapuran R Subramanian                                    
                                    
                                        DOI:10.1016/0040-4020(96)00368-7
                                    
                                    
                                        日期:1996.6
                                    
                                    N-tosyl-2-pyrrolidone 5 were condensed with cyano compounds in the presence of triflic anhydride (Tf2O) to yield heteroarylpyrimidines. 2,4-Difunctionalized pyrimidines were obtained by reaction of the corresponding 2,4-bis(methylsulfonyl)pyrimidines with nucleophiles.
                                    在三
氟甲酸酐(Tf 2 O)存在下,将N-
甲苯磺酰基-2-和-
3-乙酰基吡咯1或N-
甲苯磺酰基-
2-吡咯烷酮5与
氰基化合物缩合,得到杂芳基
嘧啶。通过使相应的2,4-双(甲基磺酰基)
嘧啶与亲核试剂反应获得2,4-双官能化的
嘧啶。