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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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Communication | Regular issue | Vol 16, No. 1, 1981, pp.1-4
Published online, 1st January, 1970■ Synthesis of Condensed Nitrogen Heterocycles Derived from Indan-1,3-dione
Published online, 1st January, 1970
DOI: 10.3987/R-1981-01-0001
■ Synthesis of Condensed Nitrogen Heterocycles Derived from Indan-1,3-dione
P. V. Padmanabhan, K. J. Jagannadha Rao, D. V. Ramana, and S. R. Ramadas*
*Department of Chemistry, Indian Institute of Technology, Madras, 600 036, India
Abstract
Convenient procedures have been evolved out for the synthesis of condensed nitrogen heterocycles such as indenopyrrole, indenopyridazine, indenodiazepine and a few spiroheterocycles from indan-1,3-dione.
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