Brønsted Acidic Ionic Liquid: An Efficient and ReusableCatalyst for the Multi-Component Synthesis ofDihydropyrimidinones under Solvent-Free Conditions

Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

COSPC01_045

تاریخ نمایه سازی: 30 شهریور 1402

Abstract:

An efficient and convenient procedure for the synthesis of ۳,۴-dihydropyrimidin-۲(۱H)-ones and thiones by condensation of ۱,۳-dicarbonylcompounds, Aromatic and aliphatic aldehydes, and urea or thiourea in the presence ofcatalytic amount of Brønsted acidic ionic liquid ۳-methyl-۱-sulfonic acid imidazoliumchloride {[Msim]Cl} under thermal solvent-free conditions reacted easily to afford thecorresponding ۳,۴-dihydropyrimidin-۲(۱H)-ones and thiones. Straightforward andclean workup, short reaction time, good to excellent yields and reusability of thecatalyst are the advantages of this method.

Authors

Heshmatollah Alinezhad

Department of Organic Chemistry, Faculty of Chemistry, University ofMazandaran, Babolsar,Iran,

Neda Ghobadi

Department of Organic Chemistry, Faculty of Chemistry, University ofMazandaran, Babolsar,Iran,