Dinuclear cobalt complexes supported by biphenol and binaphthol-derived bis(salicylaldimine) ligands: synthesis, characterization and catalytic application in β-enaminone synthesis from 1,3-dicarbonyl compounds and aliphatic amines

Abstract

Biaryl scaffolding ligands form dicobalt clusters, which serve as efficient catalysts in enaminone synthesis under ambient conditions.

Green synthesis of new lawsone enaminones and theirZ/E(CC)-isomerization induced by organic solvent

“…The most important and straightforward method involves the direct condensation of b-dicarbonyl compounds with amines using various catalysts. [16][17][18][19][20] Enaminones have a pronounced tendency to undergo various isomeric transformations in solvents with different polarities. This property is particularly important for applications of enaminones and plays a major role in determining chemical, biological, and therapeutic activities of these compounds.…”

Well‐Defined Binuclear Co(II) Complexes: Synthesis, Structure, Characterizations and Catalytic Applications in Cyanosilylation of Various Aldehydes under Solvent‐Free Conditions

“…( R )‐(+)‐1,1′‐binaphthyl‐2,2′‐diol ( R )‐Binol) was purchased from Spectrochem, India and used without further purification. 3,3′‐diformyl‐2,2’‐dihdroxy‐1,1′‐binaphthyl was synthesized based on the reported procedures [3,11] …”

“…Recent developments in multinuclear metal complexes have improved oxidative catalysis, molecular magnetism, and modelling of metalloenzyme active sites. [1][2][3][4][5][6][7][8][9][10] Many metalloenzymes, for example, use two or more metallic centres for cooperative catalysis, which has resulted in the development of a plethora of polynuclear transition metal complexes that mimic the relevant metalloenzymes. [7][8][9][10][11] .…”

Binuclear cobalt(ii) complexes: synthesis, structure, characterizations and catalytic applications in acceptor-less dehydrogenation (AD) of primary alcohols into aldehydes

“…The negative value of θ (Weiss's constant) indicates the presence of weak antiferromagnetic interaction in the binuclear cobalt( ii ) complex- 2 . 38,50–52 The presence of insignificant maxima within the plots of χ M versus T is per weak coupling. 46…”