3835-64-1Relevant articles and documents
Developments in transfer hydrogenations of aromatic ketones catalyzed by boron compounds
Pasa, Salih,Gürler, Nedim,Temel, Hamdi,Rafikova, Khadichakhan,Aydemir, Murat
, p. 1357 - 1367 (2017)
Boron complexes BL1 and BL2 were prepared from O-donor ligands, 2,2′-(1E,1′E)-(ethane-1,2-diylbis(azan-1-yl-1-ylidene))bis(methane-1-yl-1-ylidene)diphenol (L1) and 2,2′-(propane-1,3-diylbis(azan-1-yl-1-ylidene))bis(methane-1-yl-1-ylidene)diphenol (L2). The complexes were fully characterized by 1H and 13C NMR, LC-MS/MS, TGA/DTA, UV-Vis, elemental analysis, SEM, and FTIR. The transfer hydrogenation of acetophenone derivatives was investigated by the boron complexes in the presence of isoPrOH, as the hydrogen source, under basic condition with NaOH. The results showed that the boron complexes were promising catalytic precursors for transfer hydrogenation of aromatic ketones in 0.1?M isoPrOH solution (up to 99%). Both steric and electronic factors of this class of molecules had a significant impact on the catalytic properties.
Giacomelli,G. et al.
, p. 1790 - 1793 (1978)
Enantioselective hydrogen transfer reactions from propan-2-ol to ketones catalyzed by pentacoordinate iridium(I) complexes with chiral Schiff bases
Zassinovich, Grazia,Bettella, Roberto,Mestroni, Giovanni,Bresciani-Pahor, Nevenka,Geremia, Silvano,Randaccio, Lucio
, p. 187 - 202 (1989)
Some diastereoisomeric pentacoordinate complexes of the type *)I> (COD=cis,cis-1,5-cyclooctadiene; NNR*=2-pyridinal-1-phenylethylimine (PPEI) (I), 2-acetylpyridine-1-phenylethylimine (APPEI) (II)) have been synthesized.Th
Giacomelli et al.
, p. 4135 (1971)
Preparation of catechol boronate esters enabled by N → B dative bond as efficient, stable, and green catalysts for the transfer hydrogenation of various ketones
Aydemir, Murat,Durap, Feyyaz,Kilic, Ahmet,Patlak, Bekir
, (2022/01/26)
A series of new structurally related catechol boronate esters enabled by N → B dative bond of general composition (B1-B4) and (B1N-B4N) were designed and synthesized for the transfer hydrogenation of various ket
PNO ligand containing planar chiral ferrocene and application thereof
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Paragraph 0114-0118; 0132, (2021/06/21)
The invention discloses a PNO ligand containing planar chiral ferrocene and application thereof. The PNO ligand containing planar chiral ferrocene is a planar chiral ferrocene-containing and phenol-containing PNO ligand as shown in a general formula (I) or (II) which is described in the specification, or a planar chiral ferrocene-containing and aryl-phosphoric-acid-containingPNO ligand containing as shown in a general formula (III) or (IV) which is described in the specification, or a planar chiral ferrocene-containing and carbon-chiral-phenol-containingPNO ligand as shown in a general formula (V) or (VI) which is described in the specification. The invention provides tridentate PNO ligands and processes for their complexation with transition metal salts or transition metal complexes; the introduction of salicylaldehyde and derivatives thereof, which are simple and easy to obtain, enables the ligands to have a bifunctionalization effect, and -OH in a formed catalyst has stronger acidity and is beneficial to combination with N/O in polar double bonds. Therefore, due to the bifunctionalization effect of the catalyst, the interaction between the catalyst and a substrate can be greatly improved, so a reaction can obtain higher catalytic activity and stereoselectivity.