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The 3-hydroxy group of lanosterol is essential for orienting the substrate in the substrate site of cytochrome P-45014DM (Lanosterol 14α-demethylase)
Interaction of lanosterol, 3-epilanosterol, 3-oxolanosta-8,24-diene, 3-methylenelanost-8-ene and lanosterol acetate with cytochrome P -450 14DM were studied. The cytochrome mediated the… Expand
Cobalt-Catalyzed Allylic C(sp3)-H Carboxylation with CO2.
- Kenichi Michigami, T. Mita, Yoshihiro Sato
- Chemistry, Medicine
- Journal of the American Chemical Society
- 20 April 2017
This allylic C(sp3)-H carboxylation showcases a facile synthesis of γ-butyrolactones from simple allylarenes via short steps through Sharpless asymmetric dihydroxylation. Expand
Sequential protocol for C(sp3)-H carboxylation with CO2: transition-metal-catalyzed benzylic C-H silylation and fluoride-mediated carboxylation.
A sequential protocol by employing a nitrogen-directed, metal-assisted, C-H activation/catalytic silylation reaction in conjunction with fluoride-mediated carboxylation with CO(2) gas was established, which proceeded only at the benzylic C(sp(3))-Si bond, which is advantageous for further manipulations of the products. Expand
Catalytic asymmetric carbon-carbon bond formation: asymmetric synthesis of cis-decalin derivatives by palladium-catalyzed cyclization of prochiral alkenyl iodides
Une synthese asymetrique catalytique utilisant la reaction de type Heck a ete realisee pour la premiere fois, donnant un des derives de cis-decaline avec plus de 46% d'exces enantiomere
Nickel-mediated carboxylative cyclization of enynes
Nickel-mediated carboxylative cyclization of α,ω-enyne using carbon dioxide was investigated. Oxidative cycloaddition of enynes having an electron withdrawing group on alkene to a zero-valent nickel… Expand
Rhodium(I)-Catalyzed Intramolecular Hydroacylation of 4,6-Dienals: Novel Synthesis of Cycloheptenones.
Rhodium(I)-Catalyzed Synthesis of Cycloheptenones Yo ihiro Oonishi,a Miwako Mori,b Yoshihiro Sato*a a Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan Fax… Expand
Nickel‐Catalyzed Regioselective Synthesis of Tetrasubstituted Alkene Using Alkylative Carboxylation of Disubstituted Alkyne.
Effective Synthesis of Tamoxifen Using Nickel‐Catalyzed Arylative Carboxylation.
Nickel‐Promoted Highly Regioselective Carboxylation of Aryl Ynol Ether and Its Application to the Synthesis of Chiral β‐Aryloxypropionic Acid Derivatives.
A new method for the enantioselective synthesis of the optically active title propionic acid derivatives involving the synthesis of α-substituted-β-aryloxyacrylic acid derivatives from aryl ynol… Expand
Catalytic enantioselective silylation of N-sulfonylimines: asymmetric synthesis of α-amino acids from CO2 via stereospecific carboxylation of α-amino silanes.
- T. Mita, Masumi Sugawara, Keisuke Saito, Yoshihiro Sato
- Chemistry, Medicine
- Organic letters
- 16 May 2014
A catalytic enantioselective silylation of N-tert-butylsulfonylimines using a Cu-secondary diamine complex was demonstrated, providing a new synthetic protocol for optically active α-amino acids from gaseous CO2 and imines in the presence of a catalytic amount of a chiral source. Expand