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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 24, No. 9, 1986, pp.2403-2406
Published online, 1st January, 1970■ Addition of 2(1H)-Pyridinethione to 3,4-Dihydro(2H)-pyran
Published online, 1st January, 1970
DOI: 10.3987/R-1986-09-2403
■ Addition of 2(1H)-Pyridinethione to 3,4-Dihydro(2H)-pyran
Hari Babu Mareyala*
*National Chemical Laboratory, Poona-41108, India
Abstract
The title reaction gave [tetrahydro-2H-pyran-2’-yl]-2-thiopyridine (5) rather than 1-tetrahydropyranyl-2-pyridine thione (6) as was earlier reported. 1
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