Isoxazolo [3,4-d]pyridazin-7(6h)-ones. synthesis of 3-unsubstituted derivatives: A reinvestigation
作者:V. Dal Piaz、G. Ciciani、M.P. Giovannoni
DOI:10.1016/s0040-4039(00)79730-9
日期:1991.7
The structure of the major product from 1 and methylhydrazine is established and a mechanism for the formation of2 involving a preliminary nucleophilic attack at the isoxazole C-5 is proposed.