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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 53, No. 10, 2000, pp.2151-2162
Published online, 1st January, 1970■ Synthesis of Phenazine 5,10-Dioxides from Benzofuroxan Catalyzed by Molecular Sieves
Published online, 1st January, 1970
DOI: 10.3987/COM-00-8957
■ Synthesis of Phenazine 5,10-Dioxides from Benzofuroxan Catalyzed by Molecular Sieves
Tohru Takabatake, Tomoyuki Miyazawa, Mahiro Kojo, and Minoru Hasegawa*
*College of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi-shi, Chiba 274-8555, Japan
Abstract
The synthesis of substituted phenazines was carried out. Phenazine 5,10-dioxides (3) were obtained from benzofuroxan (1) with dihydroxybenzene derivatives (2) catalyzed by molecular sieves at room temperature.
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