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Sulfamic acid supported on cellulose as a biodegradable and recyclable heterogeneous catalyst for the synthesis of tetrahydrobenzo xanthene derivatives | ||
| Iranian chemical communication | ||
| مقاله 10، دوره 4، Issue 2, pp. 133-235, Serial No. 11، تیر 2016، صفحه 214-225 اصل مقاله (265.41 K) | ||
| نوع مقاله: Original Research Article | ||
| نویسندگان | ||
| Batol Zakerinasab* 1؛ Mohammad Ali Nasseri1؛ Hassan Hassani2 | ||
| 1Department of Chemistry, College of Sciences, University of Birjand, Birjand 97175-615, Iran | ||
| 2Department of Chemistry, Payam Noor University, Birjand, Iran | ||
| چکیده | ||
| Cellulose bonded N-propyl diethylene tetra sulfamic acid (CBPDETSA) was successfully applied as a green and recyclable acidic catalyst for the synthesis of tetrahydrobenzo [a] xanthene-11-one as an important class of potentially bioactive compounds. The products are obtained by the coupling of 2-naphtol , cyclohexadione and aldehyde derivatives in good to high yields (70- 92%) under solvent-free conditions. The reactivity of different aromatic aldehydes was influenced by the nature and position of the substituents on the aromatic ring. The benzaldehyde derivatives having an electron-withdrawing substituent were highly reactive and gave the products in excellent yields. Also, the catalyst could be recovered by filtration and subjected to a second reaction process. The results show that the yield of product after five runs was only slightly reduced. | ||
| کلیدواژهها | ||
| Heterogeneous catalyst؛ cellulose؛ xanthene؛ solvent-free؛ CBPDETSA | ||
| مراجع | ||
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