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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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Communication | Regular issue | Vol 12, No. 8, 1979, pp.1031-1032
Published online, 1st January, 1970■ Studies on Heterocyclic Analogues of Azulene. Part 5. Rearrangement of 7H-6a-Azacyclobuta[j]cyclopent[1,2,3-cd]azulene Ring System on Silica Gel
Published online, 1st January, 1970
DOI: 10.3987/R-1979-08-1031
■ Studies on Heterocyclic Analogues of Azulene. Part 5. Rearrangement of 7H-6a-Azacyclobuta[j]cyclopent[1,2,3-cd]azulene Ring System on Silica Gel
Noritaka Abe* and Tarozaemon Nishiwaki
*Department of Chemistry, Faculty of Science, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8512, Japan
Abstract
Rearrangement of 7H-6a-azacyclobuta[j]cyclopent[1,2,3-cd]azulene ring system to 3H-2a-azacyclopenta[ef]heptalene ring system by contact with silica gel was reported.
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