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Compounds. -Title compounds (V) and (VII) are prepared from aminoisoxazoles (I) and (VI) respectively by treatment with diethylmalonate (II) followed by cyclization with salicylaldehydes (IV) (no yields given). (Vb) shows significant antibacterial activity against Escherichia coli, Proteus vulgaris, Bacillus mycoides and Staphylococcus aureus and the degree of inhibition is comparable to that of streptomycin. -(RAJANARENDAR*, E.; RAMU, K.; RAMESH, P.; Indian J. Chem., Sect. B: Org.

Oxadiazole derivativesOxadiazole derivatives R 0290 Synthesis of Isoxazolyl Oxadiazolines and Thiazolidinones. -Isoxazolyl oxadiazolines (III) and thiazolidinones (V) and (VII) are prepared by cycloaddition reactions of (I) with (II) and (I) or (VI) with (IV) (no yields given). -(RAJANARENDAR*, E.; AFZAL, M.; RAMU, K.; Indian J. Chem., Sect. B: Org. Chem. Incl. Med. Chem. 42 (2003) 4, 927-930; Dep. Chem., Kakatiya Univ., Warangal 506 009, India; Eng.) -M. Bohle 32-094

The reaction of nitrile imines greated in situ from the arylhydrazones in the presence of chloramine-T with isoxazolyl maleimides 2 results isoxazolyl pyrrolo [3,4-i/]-7.8-dihydro pyrazoles 3. The dienophile 2, anthracene and anhydrous aluminium chloride in dichloromethane at room temperature yielded, Diels-Alder adducts i.e., 9-10-dihydro-anthranene-9,1O-e/fc/o-ZV-isoxazolyl maliemides 4. All the new products have been characterized by elemental analyses, IR, 'H NMR and mass spectra data.