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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 16, No. 11, 1981, pp.1901-1905
Published online, 1st January, 1970■ Asymmetric Transformation of 2-Chloroalkanoic Acids via Oxazoline Derivatives
Published online, 1st January, 1970
DOI: 10.3987/R-1981-11-1901
■ Asymmetric Transformation of 2-Chloroalkanoic Acids via Oxazoline Derivatives
Saizo Shibata,* Hajime Matsushita, Hajime Kaneko, Masao Noguchi, Masahiko Saburi, and Sadao Yoshikawa
*Central Reseasrch Institute, Japan Tobacco Inc., 6-2, Umegaoka, Midori-ku, Yokohama, Kanagawa 227-8512, Japan
Abstract
Asymmetric transformation of 2-chloroalkanoic acids via oxazoline derivatives were examined using (S)-phenylalaninol as a chiral auxiliary. After the transformation optical purities of the acids were appreciably improved compared with those of the acids obtained before the transformation.
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