679842-59-2Relevant articles and documents
Multicomponent click reactions catalysed by copper(I) oxide nanoparticles (Cu2ONPs) derived using Oryza sativa
Chand, Dillip Kumar,Rai, Randhir
, (2020/07/10)
Abstract: A procedure for the expedient synthesis of well-characterized Cu(I) oxide nanoparticles (Cu2ONPs) from Cu(II) salts by employing Rice (Oryza sativa) as a cheap and ready source of reducing as well as stabilizing agent has been demonstrated. The judicious choice of rice as a catalyst has helped in the symbiotic combination of two events: viz., acidic hydrolysis of starch to form glucose and the subsequent formal reduction of Cu2+ by the in-situ generated monosaccharide reducing sugar (glucose) under the alkaline condition to produce Cu2O. Further, rice was also found to be effectively stabilizing the nanoparticles from agglomeration. Optical and microscopic techniques were suitably employed for the characterization of the nanoparticles of approximately 10 nm size. Furthermore, the specifically generated nanoparticles were found to be active catalysts in an aqueous medium for Azide-alkyne Huisgen cycloaddition (Click reaction) under base free condition via one-pot multi-component addition for the synthesis of mono-, bis- and tris-1,2,3-triazoles in good to excellent yields. Graphic abstract: Cu2ONPs synthesized using hydrolysed Rice, an active catalyst for synthesis of mono-, bis- and tris-1,4-disubstituted 1,2,3-triazoles via one pot multicomponent reactions in water.[Figure not available: see fulltext.].
Click reactions catalyzed by Cu(I) complexes supported with dihydrobis(2-mercapto-benzimidazolyl)borate and phosphine ligands
Khalili, Dariush,Evazi, Roya,Neshat, Abdollah,Aboonajmi, Jasem,Osanlou, Farzane
supporting information, (2020/03/10)
Four Cu(I) complexes bearing dihydrobis(2-mercapto-benzimidazolyl)borate and phosphine co-ligands were synthesized and their catalytic activity was investigated in azide-alkyne reactions. These complexes were tested as catalyst system and among them a Cu(
Synthesis and characterization of active cuprous oxide particles and their catalytic application in 1,2,3-triazole synthesis via alkyne-azide cycloaddition reaction in water
Sawkmie, Micky Lanster,Paul, Dipankar,Kalita, Gitumoni,Agarwala, Khushboo,Maji, Pradip K.,Chatterjee, Paresh Nath
, p. 3277 - 3288 (2019/11/11)
Active cuprous oxide materials are synthesized from CuSO4.5H2O using sodium stannite as reducing agent in the presence of various stabilizers, viz., cetyl trimethyl ammonium bromide, sodium dodecyl sulphate, and polyvinyl pyrrolidone