TiO2 (Anatase) Nanoparticles a Novel Catalyst for Synthesis of vic-Diacetates as Biologically Active Compounds

Synthesis of Some Nitrogen Functional Derivatives of 5-substituted-6-azauracil as Biologically Active Compounds

3-Arylhydrazono-2,4-dioxo-4-phenylbutanoates have been prepared by the coupling of benzoylpyruvate with aryldiazonium chlorides. Reactions of the 3-arylhydrazono-2,4- dioxo-4-phenylbutanoates with 1-aminoguanidine, semicarbazide, and thiosemicarbazide gave 5-substituted 2-imino-6-azauracil (3a), 6-azauracil (3b), and 2-thio-6-azauracil (3c), respectively. The analytical data of these compounds ...

nano-rods zno as an efficient catalyst for the synthesis of chromene phosphonates, direct amidation and formylation of amines

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Novel synthesis of biologically active nitro heterocyclic compounds

Introduction A vast number of heterocyclic moieties are used in pharmaceutical research, agricultural science and drug discovery. Heterocyclic building blocks also have practical use as components in dyestuffs, antioxidants, copolymers, bases and ligands. Nitro heterocyclic compounds have diverse biological activity, antiinflammatory or vasodilator activity and structure activity relationship, ...

Synthesis and characterisation of biologically compatible TiO2 nanoparticles

We describe for the first time the synthesis of biocompatible TiO2 nanoparticles containing a functional NH2 group which are easily dispersible in water. The synthesis of water dispersible TiO2 nanoparticles coated with mercaptosuccinic acid is also reported. We show that it is possible to exchange the stearic acid from pre-synthesised fatty acid-coated anatase 5-nm nanoparticles with a range o...

synthesis of some nitrogen functional derivatives of 5-substituted-6-azauracil as biologically active compounds