SEARCH Articles Figures Tables 2-phenyl-4-substituted-5 -oxazolones 3-aryl-5-substituted-2 -oxazolones 4-alkyl-2-substituted-5 -oxazolones 4-benzyl-2-substituted-5 -oxazolones 4.4- dimethyl-2-substituted-5 -oxazolones 5-Imidazolone, substituted, from oxazolones Allyl substituted-5 -oxazolones C-Substitution of 2 -oxazolones Oxazolones, 4-substituted, Michael