Development of methodologies for the regioselective synthesis of four series of regioisomer isoxazoles from β-enamino diketones
作者:Raí G. M. Silva、Michael J. V. da Silva、Andrey P. Jacomini、Sidnei Moura、Davi F. Back、Ernani A. Basso、Fernanda A. Rosa
DOI:10.1039/c7ra13343j
日期:——
are reported for the regioselectivesynthesis of four series of regioisomer isoxazoles from cyclocondensation of β-enamino diketones and hydroxylamine hydrochloride. Regiochemical control was achieved by varying reaction conditions and substrate structure. The mild reaction conditions used to access 4,5-disubstituted, 3,4-disubtituted, and 3,4,5-trisubstituted regioisomer isoxazoles, as well as the pharmacological