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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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Report | Regular issue | Vol 23, No. 5, 1985, pp.1215-1217
Published online, 1st January, 1970■ On the Crystal Structure of the Diels-Alder Adduct of the Hydrogenated Lactams Obtained by Reductive Photocyclization of N-Cyclohex-1-enylbenzamide
Published online, 1st January, 1970
DOI: 10.3987/R-1985-05-1215
■ On the Crystal Structure of the Diels-Alder Adduct of the Hydrogenated Lactams Obtained by Reductive Photocyclization of N-Cyclohex-1-enylbenzamide
Takeaki Naito, Ichiya Ninomiya,* Mitsunobu Doi, and Masatoshi Inoue
*Kobe Women’s College of Pharmacy, Motoyamakita, Higashinad, Kobe, Hyogo 658, Japan
Abstract
The stereostructure of the Diels-Alder adduct (5) of the hydrogenated lactam (3) with maleic anhydride was unequivocally established by X-ray analysis, thus confirmed the stereochemical course of reductive photocyclization of the enamide (1).
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