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Obituary
Zenichi Yoshida (1925-2023)
Zenichi Yoshida (1925-2023)
Professor. Zenichi Yoshida,
a member of the Honorary Advisors of HETEROCYCLES (1975-1998),
has passed away on May 4, 2023 at the age of 97.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
May 11, 2023
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Paper | Regular issue | Vol 81, No. 8, 2010, pp.1871-1879
Published online, 21st June, 2010
Published online, 21st June, 2010
DOI: 10.3987/COM-10-S(E)36
■ Efficient Synthesis of Biflavones Having A Ring-A Ring of Two Flavone Units Using Suzuki Cross-Coupling Reactions
Yoshihito Kohari, Yukio Hoshino, Haruo Matsuyama, and Hiroto Nakano*
*College of Environmental Technology, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
Abstract
Biflavones having a A ring-A ring of two flavone units were easily prepared by using Suzuki cross-coupling reaction of borylated flavones with bromoflavones or flavone-5-triflate in good to excellent yields.
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