Convenient Microwave-Assisted Chlorosulfonic Acid-Catalyzed Synthesis of Some Quinazolinones from 2-Phenylindole
Russian Journal of Organic Chemistry, ISSN: 1608-3393, Vol: 58, Issue: 3, Page: 428-432
2022
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Article Description
Abstract: A new convenient method has been developed for the synthesis of quinazolinones from 2-phenyl-1H-indole and substituted amines under catalysis by chlorosulfonic acid. The target quinazolinones were synthesized through a coupling reaction of 2-phenyl-1H-indole and different amines using chlorosulfonic acid and hydrogen peroxide in DMSO on heating at 100°C, as well as under microwave irradiation at 80°C. The microwave-assisted synthesis provided excellent yields in 8 min compared to 4–5 h under conventional heating. The developed method is flexible and economical, and it has major importance in industry and academics.
Bibliographic Details
Pleiades Publishing Ltd
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