Y
Yoshihiko Yamamoto
Researcher at Nagoya University
Publications - 269
Citations - 6486
Yoshihiko Yamamoto is an academic researcher from Nagoya University. The author has contributed to research in topics: Catalysis & Cycloaddition. The author has an hindex of 41, co-authored 261 publications receiving 6014 citations. Previous affiliations of Yoshihiko Yamamoto include Tohoku University & Tokyo Institute of Technology.
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Stereoselective ring-opening polymerization of a racemic lactide by using achiral salen- and homosalen-aluminum complexes.
TL;DR: The crystal structures of the key complexes are elucidated by X-ray diffraction, which confirms that they are chiral, and analysis of the (1)H and (13)C NMR spectra unambiguously demonstrates that their conformations are so flexible that the chiral environment of the complexes cannot be maintained in solution at 25 degrees C and that the complexes are achiral under the polymerization conditions.
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Synthesis of heterocycles via transition-metal-catalyzed hydroarylation of alkynes
TL;DR: Heterocycle synthesis via TM-catalyzed hydroarylation of alkynes is surveyed, with an emphasis on the scope and limitations, as well as the underlying mechanisms.
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Ruthenium(II)-catalyzed selective intramolecular [2 + 2 + 2] alkyne cyclotrimerizations.
TL;DR: In the presence of a catalytic amount of Cp*RuCl(cod), 1,6-diynes chemoselectively reacted with monoalkynes at ambient temperature to afford the desired bicyclic benzene derivatives in good yields to produce meta-substituted products with excellent regioselectivity in ruthenium catalysis.
Journal ArticleDOI
Cp*RuCl-Catalyzed [2 + 2 + 2] Cycloadditions of α,ω-Diynes with Electron-Deficient Carbon−Heteroatom Multiple Bonds Leading to Heterocycles
Yoshihiko Yamamoto,Keisuke Kinpara,Tomoaki Saigoku,Hideyuki Takagishi,Satoshi Okuda,Hisao Nishiyama,Kenji Itoh +6 more
TL;DR: In the presence of a catalytic amount of Cp*RuCl(cod), 1,6-diynes were allowed to react chemo-and regioselectively with electron-deficient nitriles and heterocumulenes at 60−90 °C to afford heterocyclic compounds.