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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 24, No. 8, 1986, pp.2201-2213
Published online, 1st January, 1970■ Novel Synthesis of Pyridopyrimidine Diones
Published online, 1st January, 1970
DOI: 10.3987/R-1986-08-2201
■ Novel Synthesis of Pyridopyrimidine Diones
Amin Farouk Fahmy, Mohamed Salah Kamel Youssef,* Mohamed Said Abdel Halim, Mamdouh Adly Hassan, and Jourgin Sauer
*Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
Abstract
N-(Phenylsulphonyloxy)quinolinimide (I) reacts with different nucleophiles to give II-VIII. It was proved that the nucleophilic attack occurs at the more electro-positive carbonyl group to give only one product in good yields.
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