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The preparation of quinoxaline and 2,3-dihydropyrazine derivatives using selectfluor as an efficient and reusable catalyst | ||
| Iranian chemical communication | ||
| مقاله 2، دوره 3، Issue 1, pp. 1-71, Serial No.6، فروردین 2015، صفحه 6-15 اصل مقاله (677.41 K) | ||
| نوع مقاله: Original Research Article | ||
| نویسندگان | ||
| Seyedeh Fatemeh Hojati* 1؛ Zahra Nematdoust2؛ Toktam Zeinali2 | ||
| 1Hakim Sabzevari University | ||
| 2hakim sabzevari university | ||
| چکیده | ||
| Selectfluor [1-(chloro methyl) -4-flouro -1,4-di azonia bicyclo[2,2,2] octane bis (tetraflouro-borate)] catalyzed the preparation of quinoxaline and 2,3-dihydo pyrazine derivatives through one -pot condensation of 1,2-di amines with 1,2-di carbonyls in solvent and under solvent- free conditions. This catalyst is commercially available, inexpensive, reusable, stable to air and moisture, and relatively non-toxic. Furthermore, very short reaction times, high yields of products, mild reaction conditions, absence of solvent, and easy work-up are other considerable advantages of these procedures. Also, a resonable mechanism has been proposed for the current reaction. The chemical structure and purity of the products were characterized by 1H NMR and IR spectroscopy. | ||
| کلیدواژهها | ||
| Quinoxaline؛ 2,3-dihydropyrazine؛ selectfluor؛ 1,2-diamine؛ 1,2-dicarbonyl | ||
| مراجع | ||
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