Synthesis of 2,3-dihydroquinazolin-4(1h)-ones Using Bronsted Acidic Ionic Liquid

Content Provider	Semantic Scholar
Author	Alinezhad, Heshmatollah Tajbakhsh, Mahmood Ghobadi, Neda
Copyright Year	2014
Abstract	Dihydroquinazolin-4(1H)-ones were efficiently synthesized via one-pot, three-component reaction of isatoic anhydride, primary amines or ammonium acetate, and different aromatic aldehydes in the presence of 3-methyl-1-sulphonic acid imidazolium hydrogen sulphate {( ) } 4 HSO Msim as an efficient Bronsted acidic ionic liquid in aqueous media. The catalyst could be recovered and reused for at least four cycles without significant loss of activity.
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