CONDENSATION OF 1,2-HYDROXYLAMINOOXIMES WITH ACETYLACETONE. CONVERSION OF TETRAHYDROIMIDAZOISOXAZOLES INTO DERIVATIVES OF 2H-IMIDAZOLE, 1-HYDROXYPYRROLE, AND 4-OXOTETRAHYDROPYRIDINE

Article abstract of DOI:10.1007/BF00756414

Reaction of 1,2-hydroxylaminooximes with acetylacetone gives tetrahydroimidazo<1,2-b>isoxazoles. 4-Phenyltetrahydroimidazo<1,2-b>isoxazole in methanolic HCl forms the corresponding 2-acetonyl-2H-imidazole.Both tetrahydroimidazo<1,2-b>isoxazoles and 2-acet