Interconversion of 3-Acylaminobenzisoxazoles and 3-(2-Hydroxyphenyl)-1,2,4-oxadiazoles
作者:Kálmán Harsányi
DOI:10.1002/jhet.5570100613
日期:1973.12
Interconversion of 3-(2-hydroxyphenyl)-1,2,4-oxadiazoles (1) and 3-acylaminobenzisoxazoles (2) was observed in the presence of base carboxylate anion, triethylamine, alkali hydroxide, alcoholate. With proton transferring reagents (carboxylate, triethylamine) the equilibrium 1⇌2 is dependent on the substituent R; with anionic reagents (hydroxy anion, ethoxyl anion) the less basic anion of 1 is preferred