78994-41-9Relevant academic research and scientific papers
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
Filkale, Adelew Estifanos,Pathak, Chandni
supporting information, p. 15109 - 15121 (2020/09/23)
Two new tetradentate ligands, namely, 3,3′-bis[((2,4,6-trimethyl-phenyl)imino)methyl]-[1,1′]-biphenyl-2,2′-diol,H2L1(1), and 3,3′-bis[((2,4,6-trimethylphenyl)imino)methyl]-[1,1′]-binaphthalenyl-2,2′-diol,H2L2(3), based on 2,2′-biphenol and 2,2′-binaphthol frameworks have been synthesized and characterized. Correspondingly, dinuclear cobalt complexes {Co[3,3′-bis-((R)-iminomethyl)-(1,1′)-biphenyl-2,2′-dioxo]}2(2) and {Co[3,3′-bis-((R)-iminomethyl)-(1,1′)-binaphthalenyl-2,2′-dioxo]}2(4) (where R = 2,4,6-Me3C6H2) were synthesizedviareactions of the respective ligands with tetrahydrate cobalt acetate. The complexes were then characterized by elemental analysis, mass spectrometry, IR, UV-vis, magnetic susceptibility and single-crystal X-ray diffraction analysis. The single-crystal X-ray crystallographic study indicates a distorted tetrahedral geometry for each of the metal ions in2and4. The magnetic susceptibility measurements at varying temperatures (5-300 K) showed that the complexes exhibit weak antiferromagnetic (AF) interactions. Both metal complexes2and4successfully catalysed the synthesis of β-enaminones from 1,3-dicarbonyl compounds and aliphatic amines under ambient conditions.
Silylated azolium salts and their applications in the synthesis of azolines and β-enaminoketones bearing allyl-, vinyl-, and acylsilane or α-silylketone units
González-Nogal, Ana M.,Calle, Mariola
experimental part, p. 5472 - 5483 (2009/12/03)
Differently silylated 3- or 4-isoxazolines and 3-pyrazolines, bearing versatile vinyl- or allylsilane moieties in various positions of the heterocyclic system, have been synthesized starting from new silylazolium salts by reduction with metal complex hydr
New Route to Functionalized Cyclohexenes in Solvent-free Conditions from Enamino Ketones and β-Oxo Alkenes
Ayoubi, Sahar Abdallah-El,Toupet, Loic,Texier-Boullet, Francoise,Hamelin, Jack
, p. 1112 - 1116 (2007/10/03)
Enamino ketones 5 react with β-oxo alkenes 4, without solvent, at room temperature or under focused microwaves to give new, highly functionalized cyclohexenes 7 and 9 in good yields. A mechanism is proposed. The procedure is mild, efficient, economical and environmentally benign. - Keywords: solvent-free reactions; enamino ketones; cyclohexenes; β-oxo alkenes
2-Methylpentane-2,4-Dioxysilicon(IV) Complexes of 4-(Alkyl or Aryl)Amino-3-Pentane-2-One
Singh, R. V.,Tandon, J. P.
, p. 864 - 867 (2007/10/02)
2-Methylpentane-2,4-dioxysilicon(IV) complexes of the type Si(SB)2(C6H12O2) (where SBH and C6H14O2 represent the monofunctional bidentate Schiff base and 2-methylpentane-2,4-diol molecules respectively) have been synthesized by the reactions of silicon te
