کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5225150 | 1383538 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Benzyl and tert-butyl carbamate derivatives of 1,Ï-amino acids as simple yet efficient gelators
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report the synthesis and a study of the gelation properties of a series of N-protected long-chain amino acids. Especially, benzyl and tert-butyl carbamate derivatives of 11-aminoundecanoic acid in their deprotonated form can gelate polar organic solvents and water at very low concentration (less than 5Â mM). This is explained by the contribution of multiple forces-H-bond, van der Waals and ionic interactions-in the gel aggregate formation and stabilization, which is confirmed by the experimental data. Among the series of compounds investigated, only a dimer of 11-aminoundecanoic acid is capable of gelating toluene, which stems from the increased number of hydrogen bonding sites in the main aliphatic chain.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 63, Issue 31, 30 July 2007, Pages 7482-7488
Journal: Tetrahedron - Volume 63, Issue 31, 30 July 2007, Pages 7482-7488
نویسندگان
Anthony D'Aléo, Jean-Luc Pozzo, Karine Heuzé, Fritz Vögtle, Frédéric Fages,