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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 55, No. 1, 2001, pp.45-58
Published online, 1st January, 1970■ Preparation of New Imidacloprid Analogues
Published online, 1st January, 1970
DOI: 10.3987/COM-00-9016
■ Preparation of New Imidacloprid Analogues
Lajos Novák,* Gábor Hornyánszky, Imre Király, János Rohály, Pál Kolonits, and Csaba Szántay
*Institute for Organic Chemistry, Budapest University o f Technical Economics, Gellért tér 4, H-1111 Budapest, Hungary
Abstract
A 3-step synthesis of the biologically active metabolites (2 and 3) of imidacloprid from aminoacetaldehyde diethyl acetal or ethylenediamine was developed. A series of new imidacloprid analogues were also prepared.
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