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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 2, No. 5, 1974, pp.585-588
Published online, 1st January, 1970■ Indolizine Derivatives. II. Indolizines from the Perkin Reaction of 2-Pyridinecarbaldehyde
Published online, 1st January, 1970
DOI: 10.3987/R-1974-05-0585
■ Indolizine Derivatives. II. Indolizines from the Perkin Reaction of 2-Pyridinecarbaldehyde
Esko Pohjala*
*Department of Chemistry, Technical University of Helsinki, P.O. Box 6100, FIN-02150 HUT Espoo, Finland
Abstract
The Perkin reaction of 2-pyridinecarbaldehyde (I) gives the indolizines IIIa-f and the pyrrolo [2,1,5-cd]indolizine IVa. In the presence of active methylene compounds the indolizines IIIg-n are formed.
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