HETEROCYCLES
An International Journal for Reviews and Communications in Heterocyclic ChemistryWeb Edition ISSN: 1881-0942
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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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Note | Regular issue | Vol 78, No. 1, 2009, pp.197-206
Published online, 4th September, 2008■ A Novel and Efficient Approach to Pyrazolo[1,5-a]pyridine Derivatives via One-Pot Tandem Reaction
Published online, 4th September, 2008
DOI: 10.3987/COM-08-11510
■ A Novel and Efficient Approach to Pyrazolo[1,5-a]pyridine Derivatives via One-Pot Tandem Reaction
Yan-Qing Ge, Jiong Jia, Yan Li, Ling Yin, and Jianwu Wang*
*School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
Abstract
An unusual intramolecular condensation of α,β-unsaturated esters with aldehydes was discovered and the pyrazolo[1,5-a]pyridine derivatives were conveniently synthesized by this novel tandem reaction under very mild conditions. The reaction mechanism was also proposed.
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