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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 75, No. 2, 2008, pp.391-395
Published online, 23rd October, 2007■ N-Bromosuccinimide (NBS) as Promoter for Acylation of Sydnones in the Presence Acetic Anhydride under Neutral Conditions
Published online, 23rd October, 2007
DOI: 10.3987/COM-07-11185
■ N-Bromosuccinimide (NBS) as Promoter for Acylation of Sydnones in the Presence Acetic Anhydride under Neutral Conditions
Hassan Ghasemnejad-Bosra,* Mina Haghdadi, and Issa Gholampour-Azizi
*Islamic Azad University-Babol Branch, School of Science, P.O. Box 755, Babol, Iran
Abstract
Various 4 - acetyl sydnones (2) can be prepared by reaction of the corresponding 3-aryl sydnones (1) with acetic anhydride at ~110 °C promoted by N-Bromosuccinimide (NBS) as an effective reagent for acylation of sydnones under neutral conditions in satisfactory yields.
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