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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 | Special issue | Vol 39, No. 2, 1994, pp.445-448
Published online, 1st January, 1970■ A Formal Synthesis of Naucléfine
Published online, 1st January, 1970
DOI: 10.3987/COM-94-S(B)44
■ A Formal Synthesis of Naucléfine
Rahul Vohra and David B. MacLean*
*Department of Chemistry, McMaster University Hamilton, Ontario, L8S 4M1, Canada
Abstract
The amidine (2) has been prepared in three steps from the enolate of (3-cyanopyridin-4-yl)acetaldehyde and tryptamine hydrochloride by way of the enamine (5) and the 1,2,3,4-tetrahydro-β-carboline (6). The conversion of 2 into naucléfine has been previously reported.
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