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Synthesis and Antimicrobial Activities of Novel Palladium (II) Complexes of Active Schiff’s Base Ligand Derived from 5-Bromo Isatin

Patange A. N., Yadav U. M., Desai P. A., Singare P. U.

International Letters of Chemistry, Physics and Astronomy

2015

Vol. 52

22--27

This paper presents the synthesis and antimicrobial studies of Palladium (II) complexes of ThioSemicarbazone Pd (L1H)2Cl2 and Semicarbazone Pd (L2H)2Cl2 derived from 5-Bromo Isatin. All complexes reported here had been characterised by1H NMR and IR spectral studies .the complexes are diamagnetic in nature and showing square planner geometry. The IR spectral data reveals that both the Schiff’s bases behave as bidentate ligands and are co-ordinated to Pd (II) metal through the sulfur and hydrogenic nitrogen atom. All the new synthesized compounds were screened for antibacterial activity against four of the test organisms like Bacillus pumilus, Micrococcus Lutes, E.coli, Salmonella abony.

An extraction of the Isatin from the Couroupita Guianesis (cannon ball tree) and A novel synthesis of the N,N'-(2-oxo-3'H-spiro[indoline-3,2'-[1,3,4]thiadiazole]-3',5'-diyl]diacetamide from the Isatin

Tripathi R. R., Sonawane R. P.

International Letters of Chemistry, Physics and Astronomy

2013

Vol. 10, iss. 2

119-125

Isatins are synthetically versatile substrates, where they can be used for the synthesis of a large variety of Isatins and heterocyclic compounds. In this, the isatin were extracted from the floral material of Couroupita guianesis commonly known as an Cannon ball tree. After that, a novel heterocyclic spiro derivative having an IUPAC name N,N’-(2-oxo-3’H-spiro[indoline-3,2’-[1,3,4] thiadiazole]-3’5’-diyl)diacetamide were synthesized , which may be used as raw material for drug synthesis. A spiro compound N,N’-(2-oxo-3’H-spiro[indoline-3,2’-[1,3,4] thiadiazole]-3’5’-diyl)diacetamide were synthesise by refluxing Isatin And thiosemicarbazone in ethanol and then on heating with acetic anhydride underwent to cyclization into intermediate that on acetylation of the NH and NH2 groups afforded the spiro compound.

Synthesis, Nuclear Magnetic Resonance and Infrared Studies of Zinc(II) and Cadmium(II) Complexes of Thiosemicarbazones Derived from Fluorenone and p-Anisaldehyde

Akinchan N., Drożdżewski P. M., Akinchan R.

Polish Journal of Chemistry

2002

Vol. 76 / nr 10

1381-1387

Fluorenone (FTSCH) and p-anisaldehyde (ATSCH) thiosemicarbazones react with zinc(II) and cadmium(II) acetates forming M:L 1:2 complexes, characterized by IR, 1H and 13C NMR spectra and elemental analyses. The coordination mode of the ligands is discussed and four-coordinate, pseudo-tetrahedral structures are suggested.