Izuru Takei
University of Tokyo
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Izuru Takei.
Angewandte Chemie | 1999
Yoshiaki Nishibayashi; Izuru Takei; Masanobu Hidai
The heterolytic cleavage of H(2) is the key to the novel catalytic hydrogenolysis of trimethylsilyl enol ethers catalyzed by [RuCl(eta(2)-H(2))(dppe)(2)]OTf (dppe = 1,2-bis(diphenylphosphanyl)ethane, OTf = trifluoromethanesulfonate), which results in the formation of a ketone and Me(3)SiH (see scheme). In addition, the stoichiometric, ruthenium-assisted protonation of a prochiral lithium enolate with H(2) gave a chiral ketone with high enantioselectivity (up to 75 % ee).
Chemical Communications | 2001
Izuru Takei; Yoshiaki Nishibayashi; Youichi Ishii; Yasushi Mizobe; Sakae Uemura; Masanobu Hidai
Chiral ruthenium(II) complexes, RuCl2(PPh3)(oxazolinylferrocenylphosphine), have been found to be effective catalysts for asymmetric hydrosilylation of ketoximes to give the corresponding primary amines in good yields with high enantioselectivities (up to 89% ee) after acid hydrolysis.
Angewandte Chemie | 1999
Yoshiaki Nishibayashi; Izuru Takei; Masanobu Hidai
Die heterolytische Spaltung von H2ist der Schlusselschritt in der durch [RuCl(η2-H2)(dppe)2]OTf (dppe=1,2-Bis(diphenylphosphanyl)ethan, OTf=Trifluormethansulfonat) katalysierten Hydrogenolyse von Trimethylsilylenolethern, bei der ein Keton und Me3SiH die Produkte sind (siehe Schema). Die ebenfalls beschriebene stochiometrische, Ruthenium-unterstutzte Protonierung eines prochiralen Lithiumenolats mit H2 liefert hochenantioselektiv das chirale Keton (bis 75% ee).
Organometallics | 1998
Yoshiaki Nishibayashi; Izuru Takei; Sakae Uemura; Masanobu Hidai
Organometallics | 1999
Yoshiaki Nishibayashi; Izuru Takei; Sakae Uemura; Masanobu Hidai
Organometallics | 1999
Izuru Takei; Yoshiaki Nishibayashi; Yasuyoshi Arikawa; Sakae Uemura; Masanobu Hidai
Inorganic Chemistry | 2005
Izuru Takei; Keita Dohki; Koji Kobayashi; Toshiaki Suzuki; Masanobu Hidai
Organometallics | 2003
Izuru Takei; Youhei Wakebe; Kazuki Suzuki; Yutaka Enta; Toshiaki Suzuki; Yasushi Mizobe; Masanobu Hidai
Organometallics | 2003
Izuru Takei; Kazuki Suzuki; Yutaka Enta; Keita Dohki; Toshiaki Suzuki; Yasushi Mizobe; Masanobu Hidai
Organometallics | 1997
Yoshiaki Nishibayashi; Izuru Takei; Masanobu Hidai