Efficient Synthesis of Various Benzoxazinones Using K2CO3/H2O in [Omim][BF4] Ionic Liquid
Publish place: Organic Chemistry Journal، Vol: 2، Issue: 1
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_OCJ-2-1_007
تاریخ نمایه سازی: 19 شهریور 1396
Abstract:
Synthesis of various derivatives of 2H-benzo[b][1,4]oxazin-3(4H)-one is efficiently carried out starting from the corresponding o-aminophenols and 2-bromoalkanoates. Reactions take place chemoselectively at room temperature catalyzed by K2CO3 and H2O in [omim][BF4] ionic liquid. At the end of the reactions, products are separated from the mixtures by ethereal extraction and the ionic liquid is recovered and recycled into the next reactions without noticeable loss of its activity. NMR experiments show no obvious changes in the structure of the ionic liquid after several reuses
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Authors
Ali Sharifi
Chemistry and Chemical Engineering Research Center of Iran, P.O.Box ۱۴۳۳۵-۱۸۶, Tehran, Iran
Mehdi Barazandeh
Chemistry and Chemical Engineering Research Center of Iran, P.O.Box ۱۴۳۳۵-۱۸۶, Tehran, Iran
Amin Abaee
Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
Mojtaba Mirzaei
Chemistry and Chemical Engineering Research Center of Iran, P.O.Box ۱۴۳۳۵-۱۸۶, Tehran, Iran