Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Koji Ohtake"'
Publikováno v:
Choonpa Igaku. 40:267-272
Autor:
Kenso Soai, Itaru Sato, Takanori Shibata, Nobuaki Shirai, Yutaka Hirokawa, Ryo Kodaka, Koji Ohtake
Publikováno v:
Tetrahedron: Asymmetry. 11:2271-2275
Chiral dendrimers bearing three or six chiral β-amino alcohols on the hyperbranched hydrocarbon chain-ends act as efficient chiral ligands for the enantioselective addition of diethylzinc to N -diphenylphosphinylimines to afford enantiomerically enr
Autor:
Nobuaki Shirai, Kenso Soai, Ryo Kodaka, Takanori Shibata, Koji Ohtake, Itaru Sato, Yutaka Hirokawa
Publikováno v:
Tetrahedron Letters. 41:3123-3126
Chiral dendrimers with three or six β-amino alcohols on hyperbranched hydrocarbon chain-ends were synthesized. These macromolecules can act as chiral catalysts for the enantioselective addition of dialkylzincs to aldehydes. The corresponding seconda
Publikováno v:
Tetrahedron: Asymmetry. 8:4033-4040
Chiral diimines, diamines and dendrimers possessing 2, 4 and 8 ephedrine derivatives are utilized as chiral ligands for the enantioselective addition of diethylzinc to N -diphenylphosphinylimines to afford enantiomerically enriched N -diphenylphosphi
Publikováno v:
ChemInform. 29
Chiral diimines, diamines and dendrimers possessing 2, 4 and 8 ephedrine derivatives are utilized as chiral ligands for the enantioselective addition of diethylzinc to N -diphenylphosphinylimines to afford enantiomerically enriched N -diphenylphosphi
Autor:
Koji Ohtake, Yutaka Hirokawa, Kenso Soai, Nobuaki Shirai, Takanori Shibata, Itaru Sato, Ryo Kodaka
Publikováno v:
ChemInform. 31
Chiral dendrimers with three or six β-amino alcohols on hyperbranched hydrocarbon chain-ends were synthesized. These macromolecules can act as chiral catalysts for the enantioselective addition of dialkylzincs to aldehydes. The corresponding seconda
Autor:
Koji Ohtake, Minoru Endo, Youichirou Kawabata, Teruo Yajima, Munenori Watanabe, Masaki Aoyama, K. Imaoka
Publikováno v:
2006 IEEE International Symposium on Semiconductor Manufacturing.
This study is an investigation of the way to reduce the particle count by using optical emission spectroscopy (O.E.S.). From the results of O.E.S. analysis, it is revealed that the chamber cleaning seriously affects the particle count. The result of
Autor:
Yutaka Hirokawa, Koji Ohtake, Ryo Kodaka, Kenso Soai, Itaru Sato, Takanori Shibata, Nobuaki Shirai
Publikováno v:
ChemInform. 31
Chiral dendrimers bearing three or six chiral β-amino alcohols on the hyperbranched hydrocarbon chain-ends act as efficient chiral ligands for the enantioselective addition of diethylzinc to N -diphenylphosphinylimines to afford enantiomerically enr