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Gallium(III) triflate-catalyzed one-pot selective synthesis of 2,3-dihydroquinazolin-4(1H)-ones and quinazolin-4(3H)-ones

✍ Scribed by Jiuxi Chen; Dengze Wu; Fei He; Miaochang Liu; Huayue Wu; Jinchang Ding; Weike Su

Publisher
Elsevier Science
Year
2008
Tongue
French
Weight
187 KB
Volume
49
Category
Article
ISSN
0040-4039

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✦ Synopsis

A series of 2,3-dihydroquinazolin-4(1H)-ones and quinazolin-4(3H)-ones have been synthesized in good to excellent yields and high selectivity by one-pot reaction using isatoic anhydride, ammonium acetate (or amines), and aldehydes in ethanol or in DMSO under mild conditions, respectively. The reaction was efficiently promoted by 1 mol % Ga(OTf) 3 and the catalyst could be recovered easily after the reactions and reused without evident loss of reactivity.

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ChemInform Abstract: Gallium(III) Trifla
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✍ Jiuxi Chen; Dengze Wu; Fei He; Miaochang Liu; Huayue Wu; Jinchang Ding; Weike Su πŸ“‚ Article πŸ“… 2008 πŸ› John Wiley and Sons βš– 40 KB πŸ‘ 1 views

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