کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5225277 1383543 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and dichromate anion extraction ability of p-tert-butylcalix[4]arene diamide derivatives with different binding sites
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis and dichromate anion extraction ability of p-tert-butylcalix[4]arene diamide derivatives with different binding sites
چکیده انگلیسی

The article describes the synthesis and evaluation of the dichromate anion (Cr2O72−/HCr2O7−) extraction properties of p-tert-butylcalix[4]arene diamide derivatives (5-7) containing different binding sites. Among these compounds, 6 and 7 have been synthesized via aminolysis in a toluene-methanol solvent system with 3-aminomethylpyridine and 3,6-dioxa-1,8-diamino octane, respectively. On the other hand, compound 5 has been synthesized via an acid chloride method due to its inefficiency under aminolysis. The extraction properties of these diamides toward dichromate anions are studied by liquid-liquid extraction. The results show that p-tert-butylcalix[4]arene diamide derivative 7 exhibited a much higher affinity toward dichromate anions than that of 6 due to its special structure, while 5 was an ineffective ligand for these anions.

The article describes the synthesis and evaluation of dichromate anion extraction abilities of p-tert-butylcalix[4]arene diamides (5-7) containing various binding moieties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 63, Issue 23, 4 June 2007, Pages 5000-5005
نویسندگان
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