Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Tomoyuki Shibuguchi"'
Autor:
Hugh Nakamura, Byron K. Peters, Phil S. Baran, Yusuke Takahira, Chao Li, Solomon H. Reisberg, Yu Kawamata, Longrui Chen, Tamaki Hoshikawa, Pavel K. Mykhailiuk, Miao Chen, Tomoyuki Shibuguchi
Publikováno v:
Synlett. 30:1178-1182
A simple and robust method for electrochemical alkyl C–H fluorination is presented. Using a simple nitrate additive, a widely available fluorine source (Selectfluor), and carbon-based electrodes, a wide variety of activated and unactivated C–H bo
Autor:
Yusuke, Takahira, Miao, Chen, Yu, Kawamata, Pavel, Mykhailiuk, Hugh, Nakamura, Byron K, Peters, Solomon H, Reisberg, Chao, Li, Longrui, Chen, Tamaki, Hoshikawa, Tomoyuki, Shibuguchi, Phil S, Baran
Publikováno v:
Synlett
A simple and robust method for electrochemical alkyl C–H fluorination is presented. Using a simple nitrate additive, a widely available fluorine source (Selectfluor), and carbon-based electrodes, a wide variety of activated and unactivated C–H bo
Publikováno v:
Pure and Applied Chemistry. 80:1055-1062
Chiral CuF-catalyzed asymmetric allylation of ketones and ketimines is described. Nucleophile activation via transmetallation (allylboronate to allylcopper), which is facilitated by a cocatalyst [La(O i Pr)3 or LiO i Pr], is key for these reactions.
Autor:
Akihiro Okada, Kentaro Yamaguchi, Tomoyuki Shibuguchi, Takashi Ohshima, Hyuma Masu, Masakatsu Shibasaki
Publikováno v:
Angewandte Chemie. 117:4640-4643
Publikováno v:
Tetrahedron. 60:7743-7754
A new highly versatile asymmetric two-center catalyst, tartrate-derived diammonium salt (TaDiAS), was designed and a catalyst library containing more than 70 new two-center catalysts was constructed. A variety of ( S , S )- and ( R , R )-TaDiAS were
Publikováno v:
ChemInform. 39
Chiral CuF-catalyzed asymmetric allylation of ketones and ketimines is described. Nucleophile activation via transmetallation (allylboronate to allylcopper), which is facilitated by a cocatalyst (La(O i Pr) 3 or LiO i Pr), is key for these reactions.
Autor:
Masakatsu Shibasaki, Takashi Ohshima, Akiyoshi Kuramochi, Tomoyuki Shibuguchi, Hisashi Mihara
Publikováno v:
Chemistry, an Asian journal. 2(6)
Catalytic asymmetric Michael and Mannich-type reactions of glycine Schiff bases with chiral two-center organocatalysts, tartrate-derived diammonium salts (TaDiASs), are described. On the basis of conformational studies, optimized TaDiASs with a 2,6-d
Autor:
Masakatsu Shibasaki, and Motomu Kanai, Tomoyuki Shibuguchi, Kounosuke Oisaki, Sae Makino, Reiko Wada
Publikováno v:
ChemInform. 37
A general catalytic allylation of simple ketoimines was developed using 1 mol % of CuF.3PPh(3) as catalyst, 1.5 mol % of La(O(i)Pr)(3) as the cocatalyst, and stable and nontoxic allylboronic acid pinacol ester as the nucleophile. This reaction consti
Autor:
Takashi Ohshima, Tomoyuki Shibuguchi, Masakatsu Shibasaki, Hisashi Mihara, Shun Sakuraba, Akiyoshi Kuramochi
Publikováno v:
Angewandte Chemie (International ed. in English). 45(28)
Autor:
Yuhei Fukuta, Tetsuhiro Nemoto, Tomoyuki Shibuguchi, Masakatsu Shibasaki, Vijay Gnanadesikan, Takashi Ohshima
Publikováno v:
Journal of the American Chemical Society. 125(37)
We developed a versatile synthetic process for aeruginosin 298-A as well as several attractive analogues, in which all stereocenters were controlled by a catalytic asymmetric phase-transfer reaction and epoxidation. Furthermore, drastic counteranion