Nickel-Catalyzed Asymmetric Grignard Cross-Coupling of Dinaphthothiophene Giving Axially Chiral 1,1‘-Binaphthyls

Asymmetric Synthesis of Axially Chiral B

Asymmetric Synthesis of Axially Chiral Biaryls by Nickel-Catalyzed Grignard Cross-Coupling of Dibenzothiophenes.

✍ Yong-Hwan Cho; Asato Kina; Toyoshi Shimada; Tamio Hayashi 📂 Article 📅 2004 🏛 John Wiley and Sons ⚖ 59 KB

Asymmetric Synthesis of Axially Chiral B

Asymmetric Synthesis of Axially Chiral Biaryls by Nickel-Catalyzed Grignard Cross-Coupling of Dibenzothiophenes

✍ Cho, Yong-Hwan; Kina, Asato; Shimada, Toyoshi; Hayashi, Tamio 📂 Article 📅 2004 🏛 American Chemical Society 🌐 English ⚖ 329 KB

Asymmetric synthesis catalyzed by chiral

Asymmetric synthesis catalyzed by chiral ferrocenylphosphine-transition-metal complexes. 6. Practical asymmetric synthesis of 1,1'-binaphthyls via asymmetric cross-coupling with a chiral [(alkoxyalkyl)ferrocenyl]monophosphine/nickel catalyst

✍ Hayashi, Tamio.; Hayashizaki, Keiichi.; Kiyoi, Takao.; Ito, Yoshihiko. 📂 Article 📅 1988 🏛 American Chemical Society 🌐 English ⚖ 606 KB

Asymmetric synthesis catalyzed by chiral

Asymmetric synthesis catalyzed by chiral ferrocenylphosphine-transition-metal complexes. 6. Practical asymmetric synthesis of 1,1'-binaphthyls via asymmetric cross-coupling with a chiral [(alkoxyalkyl)ferrocenyl]monophosphine/nickel catalyst

✍ Hayashi, Tamio.; Hayashizaki, Keiichi.; Kiyoi, Takao.; Ito, Yoshihiko. 📂 Article 📅 1988 🏛 American Chemical Society 🌐 English ⚖ 606 KB

averaged. The concentration of the free amide remaining after complexation could then be calculated from the extinction coefficient and used to determine the apparent equilibrium constant. The equilibrium between free amide and the sec-butyllithium-amide complex was established within less than ca.

Asymmetric synthesis of axially chiral 1

Asymmetric synthesis of axially chiral 1,1′:5′,1″- and 1,1′:4′,1″-ternaphthalenes by asymmetric cross-coupling with a chiral ferrocenylphosphine-nickel catalyst

✍ Tamio Hayashi; Keiichi Hayashizaki; Yoshihiko Ito 📂 Article 📅 1989 🏛 Elsevier Science 🌐 French ⚖ 213 KB

High stereoselectivity in asymmetric Gri

High stereoselectivity in asymmetric Grignard cross-coupling catalyzed by nickel complexes of chiral (aminoalkylferrocenyl)phosphines

✍ Hayashi, Tamio; Tajika, Masatoyo; Tamao, Kohei; Kumada, Makoto 📂 Article 📅 1976 🏛 American Chemical Society 🌐 English ⚖ 297 KB