Publications by authors named "Eiki Tomita"
The synthesis, characterization, and catalytic performance of an iridium(III) catalyst with an electron-deficient cyclopentadienyl ligand ([Cp IrI ] ) are reported. The [Cp IrI ] catalyst was synthesized by complexation of a precursor of the Cp ligand with [Ir(cod)OAc] , followed by oxidation, desilylation, and removal of the COD ligand. The electron-deficient [Cp IrI ] catalyst enabled C-H amidation reactions assisted by a weakly coordinating ether directing group.
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- The study focuses on the creation and analysis of iridium(III) catalysts featuring an amide-pendant cyclopentadienyl ligand ([Cp IrI ]).
- These catalysts were developed from a specific ligand precursor and showed efficient performance in facilitating a reaction that combines benzamides with alkynes through fourfold C-H activation.
- The results indicated that the [Cp IrI ] catalysts achieved good to high yields in this complex reaction, highlighting their effectiveness.
Chiral Carboxylic Acid Enabled Achiral Rhodium(III)-Catalyzed Enantioselective C-H Functionalization.
Angew Chem Int Ed Engl
September 2018
Reported is an achiral Cp Rh /chiral carboxylic acid catalyzed asymmetric C-H alkylation of diarylmethanamines with a diazomalonate, followed by cyclization and decarboxylation to afford 1,4-dihydroisoquinolin-3(2H)-one. Secondary alkylamines as well as nonprotected primary alkylamines underwent the transformation with high enantioselectivities (up to 98.5:1.
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