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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 100, No. 12, 2020, pp.2072-2082
Published online, 26th October, 2020
Published online, 26th October, 2020
DOI: 10.3987/COM-20-14350
■ Montmorillonite K-10 Catalyzed Microwave-Assisted Synthesis of Pyrroles in Solvent Free Conditions
Chaowei Ma* and Guosheng Huang
*College of Chemistry and Environmental Engineering, Xinjiang Institute of Engineering, Xinjiang Wulumuqi Nanchang Road 830091, china
Abstract
An effective microwave-induced, montmorillonite K-10 catalyzed, environmentally benign synthesis of substituted pyrroles from α‑amino carbonyl compounds and aldehydes under solvent-free conditions is described. The reaction involving various substituted substrates proceeds smoothly, and substituted pyrroles are synthesized in moderate to excellent yields within minutes. The developed method offers advantages such as operational simplicity, solvent-free, rapid reaction rate and use of a commercially recyclable catalyst.
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