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Obituary
Yoshito Kishi (1937-2023)
Yoshito Kishi (1937-2023)
Professor. Yoshito Kishi,
a member of the Honorary Editorial Associates of HETEROCYCLES,
has passed away on January 9, 2023 at the age of 85.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
January 13, 2023
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Paper | Regular issue | Vol 45, No. 11, 1997, pp.2113-2129
Published online, 1st January, 1970■ Complex Base-induced Generation of 3,4-Didehydropyridine Derivatives : New Access to Aminopyridines or Pyridones
Published online, 1st January, 1970
DOI: 10.3987/COM-97-7873
■ Complex Base-induced Generation of 3,4-Didehydropyridine Derivatives : New Access to Aminopyridines or Pyridones
Karine Vinter-Pasquier, Brigitte Jamart-Grégoire, and Paul Caubère*
*INCMFU CNRS 0008, Faculte des Sciences-Campus Victor Grignard, Université Henri-Poincare, Bat. 2e cycle, Bld des Aiguillettes, BP 239 - 54506 Vandeceuvre Les Nancy Cedex, France
Abstract
The complex base, NaNH2-tert-BuONa, in THF easily transforms 3-bromopyridine and 2-pyridone derivatives into the corresponding hetarynes. The reaction of representative amines (dialkylamines, morpholine, piperidine) with these reactive intermediates leads to the preparation of aminopyridines in good yields and illustrates the synthetic usefulness of such reactions.
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