Reactions of 3-aryl-5-methyl-1,2,4-oxadiazoles with benzyl alcohol and with benzylamine
                                
                                    
                                        作者:Jonathan W. Brown、Dennis W. Clack、David A. Wilson                                    
                                    
                                        DOI:10.1039/p29880000117
                                    
                                    
                                        日期:——
                                    
                                    When heated with benzyl alcohol, 3-aryl-5-methyl-1,2,4-oxadiazoles afford mainly the aryl nitrile, benzyl acetate, and benzaldehyde. A number of other products, including 1,3,5-triazines, have been identified. Benzylamine and 5-methyl-1,2,4-oxadiazoles similarly give aryl nitrile and N-acetylbenzylamine, but the reaction is slower. However, in mixtures of the alcohol and the amine, the amine reacts
                                    当与
苄醇一起加热时,3-芳基-5-甲基-
1,2,4-恶二唑类化合物主要提供芳基腈,
乙酸苄酯和
苯甲醛。已经鉴定出许多其他产品,包括
1,3,5-三嗪。
苄胺和5-甲基-
1,2,4-恶二唑类似地得到芳基腈和N-乙酰基
苄胺,但反应较慢。但是,在醇和胺的混合物中,胺反应更快。讨论了可能的反应机理。恶二唑的甲基显示出其质子与
苄醇的质子交换比恶二唑更易与
苄醇反应的质子交换。