Synthesis of Alkaloid Analogs Containing Isoxazole and Isothiazole Fragments
摘要:
Three-component cascade cyclocondensation of naphthalen-2-amine with cyclic -dicarbonyl compounds and isoxazole- or isothiazolecarbaldehydes afforded new structural analogs of alkaloids containing isoxazole and isothiazole fragments.
Synthesis of functional isoxazole derivatives proceeding from (5-arylisoxazol-3-yl)chloromethanes
摘要:
Reaction of 3-chloromethyl-5-phenyl(p-tolyl)isoxazoles with substituted phenols under the conditions of Williamson reaction afforded the corresponding 3-aryloxymethyl-5-phenyl(p-tolyl)isoxazoles. Treating the latter with sodium methylate, sodium phenyl(benzyl, furfuryl)thiolates and morpholine in methanol resulted in the replacement of the chlorine atom in 3-chloromethyl-5-phenyl(p-tolyl)isoxazoles by methoxy-, phenyl-(benzyl, furfuryl)sulfanyl groups and morpholine residue.