ali ghasemzadeh - Academia.edu (original) (raw)
Related Authors
National Institute of Technology Rourkela
Uploads
Papers by ali ghasemzadeh
Journal of the Serbian Chemical Society, 2013
Magnetically separable Fe3O4 nanoparticles supply environmentally friendly procedure for the synt... more Magnetically separable Fe3O4 nanoparticles supply environmentally friendly procedure for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthene and 1,8-dioxo-octahydro-xanthene derivatives. These compounds were obtained in high yields and short reaction times by the reaction of dimedone and 2-naphthol with various aromatic aldehydes under solvent-free conditions. The catalyst coluld be easily recovered using an external magnet and reused for six cycles with almost consistent activity.
Journal of the Serbian Chemical Society, 2012
Biologically active isoxazoline derivatives were efficiently synthesized in excellent yields and ... more Biologically active isoxazoline derivatives were efficiently synthesized in excellent yields and in less reaction time using mild, effective and environmentally friendly butylmethylimidazolium bromide as solvent and catalyst. By use of this catalyst isoxazoline derivatives are produced via cyclization reaction of chalcone and hydroxylamine hydrochloride in ionic liquids media. The separation of the product was facile and the catalyst could be separated and recycled. Our method is very quick, safe and avoids the use of hazardous and expensive reagents and solvents.
Green Chemistry, 2020
The increasing demand for simple, clean, and sustainable protocols for the preparation of complex... more The increasing demand for simple, clean, and sustainable protocols for the preparation of complex organic molecules has continuously encouraged researchers to discover and design modern method-ologies. Metal-catalyzed multicomponent reactions (MCRs) are versatile synthetic protocols frequently utilized in the preparation of numerous natural products and pharmaceuticals, offering perfect molecular diversity and high level of atom efficiency with energy saving in a single reaction step. Although most of the investigated metal-catalyzed MCRs are based on transition metal catalysts such as palladium and copper, the exploration of new sustainable catalytic systems is constantly the subject of intense research. In this regard, metal-organic frameworks (MOFs) have recently drawn significant interest as environmentally benign alternatives, providing abundant catalytic sites in highly ordered crystalline skeletons. Although this field of research is still in its infancy, MOFs have clearly exhibited their efficacy in multicom-ponent reactions. This review aims to outline the developments of MOFs for benign applications in multi-component reactions.
Journal of the Serbian Chemical Society, 2013
Magnetically separable Fe3O4 nanoparticles supply environmentally friendly procedure for the synt... more Magnetically separable Fe3O4 nanoparticles supply environmentally friendly procedure for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthene and 1,8-dioxo-octahydro-xanthene derivatives. These compounds were obtained in high yields and short reaction times by the reaction of dimedone and 2-naphthol with various aromatic aldehydes under solvent-free conditions. The catalyst coluld be easily recovered using an external magnet and reused for six cycles with almost consistent activity.
Journal of the Serbian Chemical Society, 2012
Biologically active isoxazoline derivatives were efficiently synthesized in excellent yields and ... more Biologically active isoxazoline derivatives were efficiently synthesized in excellent yields and in less reaction time using mild, effective and environmentally friendly butylmethylimidazolium bromide as solvent and catalyst. By use of this catalyst isoxazoline derivatives are produced via cyclization reaction of chalcone and hydroxylamine hydrochloride in ionic liquids media. The separation of the product was facile and the catalyst could be separated and recycled. Our method is very quick, safe and avoids the use of hazardous and expensive reagents and solvents.
Green Chemistry, 2020
The increasing demand for simple, clean, and sustainable protocols for the preparation of complex... more The increasing demand for simple, clean, and sustainable protocols for the preparation of complex organic molecules has continuously encouraged researchers to discover and design modern method-ologies. Metal-catalyzed multicomponent reactions (MCRs) are versatile synthetic protocols frequently utilized in the preparation of numerous natural products and pharmaceuticals, offering perfect molecular diversity and high level of atom efficiency with energy saving in a single reaction step. Although most of the investigated metal-catalyzed MCRs are based on transition metal catalysts such as palladium and copper, the exploration of new sustainable catalytic systems is constantly the subject of intense research. In this regard, metal-organic frameworks (MOFs) have recently drawn significant interest as environmentally benign alternatives, providing abundant catalytic sites in highly ordered crystalline skeletons. Although this field of research is still in its infancy, MOFs have clearly exhibited their efficacy in multicom-ponent reactions. This review aims to outline the developments of MOFs for benign applications in multi-component reactions.