HETEROCYCLES
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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 41, No. 9, 1995, pp.1979-1986
Published online, 1st January, 1970■ Improved Synthesis of Esculetin
Published online, 1st January, 1970
DOI: 10.3987/COM-95-7100
■ Improved Synthesis of Esculetin
Yvette A. Jackson
*Department of Chemistry, University of the West Indies, Mona, Kingston 7, Jamaica, West Indies
Abstract
An improved synthesis of esculetin (6,7-dihydroxycoumarin) and 3-hydroxy-6,7-dimethoxycoumarin (4a) is described.
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