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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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Note | Regular issue | Vol 51, No. 4, 1999, pp.833-839
Published online, 1st January, 1970■ An Anomalous Preparing of a Tetrahydro-2H-oxocine Fused Pyrrole Derivative and Its Acid-catalyzed Rearrangement
Published online, 1st January, 1970
DOI: 10.3987/COM-98-8437
■ An Anomalous Preparing of a Tetrahydro-2H-oxocine Fused Pyrrole Derivative and Its Acid-catalyzed Rearrangement
Shan-Yen Chou,* Lien-Shange Chang, and Shyh-Fong Chen
*Deparatment of Medicinal Chemistry, Development Center for Biotechnology, Hsi-Chih Research Park 102, Lane 169, Kang Ning St, Hsi Chih 221, Taipei Hsien, Taiwan, R.O.C.
Abstract
Condensation of 5-methylthio-2-benzoylpyrrole (1) with spiro[2.5]-5,7-dioxa-6,6-dimethyloctane-4,8-dione (3) using excess amount of NaH in DMF gave an anomalous tetrahydro-2H-oxocine fused pyrrole (10), which then undergoes an acid-catalyzed rearrangement in refluxing toluene/methanol (10:1, v/v) to afford the unexpected anti-aromatic compounds (15 and 16).
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