2-Aryl-3-arylaminoisoxazol-5(2H)-ones as sources of indoles and imidazo[1,2-a]pyridines
作者:David Jeffery、Rolf H Prager、David Turner、Monica Dreimanis
DOI:10.1016/s0040-4020(02)01348-0
日期:2002.12
2-Aryl-3-arylaminoisoxazol-5(2H)-ones undergo solvolysis to form 1,3-dipoles that undergo intramolecular cyclisation to form either imidazopyridines or indoles. The mode of cyclisation is controlled by the electronegativity of the aryl substituents.