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。