名称:
                                芳香醛甲基hydr和一氧化二氮。3,6-二烯基-4-甲基-4-甲基-6H-1,2,4,5-氧杂三嗪的晶体结构。
                             
                            
                                摘要:
                                The reaction of methylhydrazones 1 with nitrile oxide has been examined. The initial product is the Z-adduct 2, which, depending on the reaction procedure and the substituents, can undergo either isomerization to the thermodynamically stable E-adduct 3 or tautomerization to the oxatriazine 4 or irreversible cyclization to the triazole 5. A general mechanism consistent with these results is proposed. Structure 4 was confirmed by X-ray studies.
                             
                                                            
                                    DOI:
                                    10.1016/s0040-4020(01)80570-6