Michael addition–halogenation–intramolecular ring-closing (MHIRC) reactions are processes in which a halogen atom as leaving group can attach to substrates or reactants during the reaction, then undergoes intramolecular ring closure. In this communication MHIRC transformation of 4-benzylidene-3-phenylisoxazol-5(4H)-one and 1,3-dimethylbarbituric acid presence N-bromosuccinimide sodium acetate E...

New benzohydrazone compound, 4-amino-N'-[(1E)-1-(2-hydroxy-6-methyl-4-oxo-4H-pyran-3-yl)ethylidene] benzohydrazide (HL1) and its Cu(II), Ni(II), Zn(II) Mn(II) complexes were synthesized. The structures of HL1 elucidated by elemental analysis IR, UV-Vis, 1H 13C NMR spectroscopy mass spectrometry. infrared spectral data the revealed that coordinated with metal ions through azomethine nitrogen, en...