Category: 147409-41-4

Nishiyama, Hisao; Park, Soon-Bong; Haga, Masaaki; Aoki, Katsuyuki; Itoh, Kenji published the artcile< Ruthenium(II)Cl2-bis(oxazolinyl)bipyridine complex. Its structure and reactivity>, Electric Literature of 147409-41-4, the main research area is crystal structure ruthenium oxazolinylbipyridine complex; catalyst dimerization cyclopropanation ruthenium oxazolinylbipyridine complex.

A mixture of [RuCl2(p-cymene)]2 and 6,6′-bis(oxazolinyl)-2,2′-bipyridine (L) was heated in EtOH at 70° to produce RuCl2L, of which structure was clarified by x-ray anal. to show that L coordinates as a tetradentate ligand. Its catalytic activities for transformations of diazoacetates in dimerization and cyclopropanation with styrene were examined and its spectroelectrochem. was studied.

Chemistry Letters published new progress about Crystal structure. 147409-41-4 belongs to class pyridine-derivatives, and the molecular formula is C22H26N4O2, Electric Literature of 147409-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Nishiyama, Hisao published the artcile< Synthesis and reactivity of organometallic complexes with C2-symmetrical optically active nitrogen-ligands. Asymmetric catalytic oxidation>, Name: 6,6′-Bis(4-(S)-isopropyl-2-oxazolinyl)-2,2′-bipyridine, the main research area is ruthenium oxazolinyl pyridine catalyst asym oxidation; oxazolinyl bipyridine ruthenium catalyst asym oxidation.

Two types of optically active nitrogen-ligands having C2-symmetry, bis(oxazolinyl)pyridine (Pybox) and bis(oxazolinyl)bipyridine (Bipymox), were developed for asym. catalytic reactions. The nitrogen ligands gave stable complexes by the reaction with ruthenium(II) chloride complex. The structures of the Pybox- and Bipymox-ruthenium complexes were analyzed by x-ray and electrochem. Their complexes of ruthenium(II) exhibited strong activities of oxidation of secondary alcs. and epoxidation of olefins with asym. induction. During this study, highly efficient enantioselective hydrosilylation of ketones and cyclopropanation reaction were discovered.

Asahi Garasu Zaidan Josei Kenkyu Seika Hokoku published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 147409-41-4 belongs to class pyridine-derivatives, and the molecular formula is C22H26N4O2, Name: 6,6′-Bis(4-(S)-isopropyl-2-oxazolinyl)-2,2′-bipyridine.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Nishiyama, Hisao; Yamaguchi, Shinobu; Park, Soon Bong; Itoh, Kenji published the artcile< New chiral bis(oxazolinyl)bipyridine ligand (bipymox): enantioselection in the asymmetric hydrosilylation of ketones>, Formula: C22H26N4O2, the main research area is asym hydrosilylation ketone rhodium complex catalyzed; bisoxazolinylbipyridine rhodium complex preparation catalyst hydrosilylation; stereoselective reduction ketone rhodium complex catalyzed; phenylethanol.

A homochiral chiral bis(oxazolinyl)bipyridine ligand I (bipymox) and its rhodium complex II were synthesized to examine the enantioselectivity in the asym. hydrosilylation of ketones in comparison to other chiral oxazoline ligands such as bis(oxazolinyl)pyridine III (pybox) and mono(oxazolinyl)pyridine IV (pymox). The bipymox-rhodium catalyst gave (S)-1-phenylethanol (90% enantiomeric excess) in the reduction of acetophenone with diphenylsilane, the same as the pybox-rhodium system but opposite to the pymox-rhodium system. The reduction of 4-tert-butylcyclohexanone is also described.

Tetrahedron: Asymmetry published new progress about Hydrosilylation catalysts. 147409-41-4 belongs to class pyridine-derivatives, and the molecular formula is C22H26N4O2, Formula: C22H26N4O2.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Jalba, Angela; Levitre, Guillaume; Keipour, Hoda; Lauzon, Samuel; Ollevier, Thierry published the artcile< New chiral bis(oxazolinyl)bipyridine ligands and application in the iron catalyzed asymmetric hydrosilylation of ketones>, Electric Literature of 147409-41-4, the main research area is chiral bis oxazolinyl bipyridine ligand preparation catalyst; iron catalyzed asym hydrosilylation acetophenone ketone.

C2 sym. 6,6′-bis(oxazolinyl)-2,2′-bipyridine (bipybox) chiral ligands have been synthesized from readily available 2,2′-bipyridine. Catalytic asym. hydrosilylation of ketones was studied using this family of ligands in the presence of iron(II) acetate.

French-Ukrainian Journal of Chemistry published new progress about Chiral ligands Role: CAT (Catalyst Use), RCT (Reactant), SPN (Synthetic Preparation), USES (Uses), RACT (Reactant or Reagent), PREP (Preparation). 147409-41-4 belongs to class pyridine-derivatives, and the molecular formula is C22H26N4O2, Electric Literature of 147409-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Jalba, Angela; Regnier, Noemie; Ollevier, Thierry published the artcile< Enantioselective Aromatic Sulfide Oxidation and Tandem Kinetic Resolution Using Aqueous H2O2 and Chiral Iron-Bis(oxazolinyl)bipyridine Catalysts>, Application In Synthesis of 147409-41-4, the main research area is aromatic sulfoxide sulfone enantioselective preparation; arylsulfide enantioselective oxidation iron chiral ligand catalyst.

An efficient method for the oxidation of aromatic sulfides has been developed by using aqueous H2O2, catalyzed by the in situ generated chiral Fe/6,6′-bis(4-isopropyloxazolin-2-yl)-2,2′-bipyridine (bipybox-iPr) complex. The corresponding sulfoxides were obtained with high enantioselectivities (up to 98.5:1.5 er) and in good yields (up to 61 %) when the mono-oxidation of the sulfides was performed in combination with the kinetic resolution of the sulfoxide into the sulfone.

European Journal of Organic Chemistry published new progress about Amino alcohols, chiral Role: RCT (Reactant), RACT (Reactant or Reagent). 147409-41-4 belongs to class pyridine-derivatives, and the molecular formula is C22H26N4O2, Application In Synthesis of 147409-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem