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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 98, No. 8, 2019, pp.1074-1088
Published online, 13th August, 2019■ Ruthenium-Catalyzed Hydroxyethylation of Cyclic Amines with Ethylene Glycol
Published online, 13th August, 2019
DOI: 10.3987/COM-19-14129
■ Ruthenium-Catalyzed Hydroxyethylation of Cyclic Amines with Ethylene Glycol
Yushi Nakamura, Shuhei Tomioka, Yohei Oe,* and Tetsuo Ohta
*Department of Biomedical Information, Faculty of Life and Medical Sciences, Doshisha University, 1-3 Tatara-miyakodani, Kyotanabe, Kyoto 610-0394, Japan
Abstract
It was found that a catalyst system RuCl2(PPh3)3/Xantphos is effective to install hydroxyethyl groups to the nitrogen atom of cyclic amines. Thus, the reactions of cyclic amines with ethylene glycol were performed in the presence of the RuCl2(PPh3)3/Xantphos catalyst in toluene at 120 °C for 22 h to provide the corresponding β-amino alcohols in up to 92% yield.
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