| abstract |
The cpds. have as substituent in the 3-position, an aliphatic, cycloaliphatic, araliphatic or aromatic residue opt. substd. by halogen, CH3O or carboxylic acid groups, the aryl group in the 2-posn. being a bivalent aromatic residue consisting of one or more condensed aromatic rings linked directly or bridged by 0, S, SO2, CH2, C(CH3)2,1,2,3-oxadiazole, or 4,4-dimethyl-imidazole -2,5-dione groupings; as well as the alkyl and halogen substd. derivs. |