کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5285292 | 1385754 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An NMR study of sequential intermediates and collateral products in the conversion of 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane (TATD) to 1,3,6,8-tetraazatricyclo[4.3.1.13,8]undecane (TATU)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An NMR study of sequential intermediates and collateral products in the conversion of 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane (TATD) to 1,3,6,8-tetraazatricyclo[4.3.1.13,8]undecane (TATU) An NMR study of sequential intermediates and collateral products in the conversion of 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane (TATD) to 1,3,6,8-tetraazatricyclo[4.3.1.13,8]undecane (TATU)](/preview/png/5285292.png)
چکیده انگلیسی
In situ 1H nuclear magnetic resonance spectroscopy was used to investigate the processes that occur during the synthesis of 1,3,6,8-tetraazatricyclo[4.3.1.13,8]undecane (TATU). NMR analysis showed a reaction mixture containing more than one compound. The production of these intermediates and collateral products was rationally supported by a careful 1H NMR monitoring study. We characterized 1,3,5-triazabicyclo[3.2.1]octane (TABO, 4) and 3-(2-aminoethyl)-1,3,5-triazabicyclo[3.2.1]octane (AETABO, 7) by 1H and 13C NMR in D2O solution inside the NMR sample tube, as an intermediate and collateral product of the reaction, respectively. Further, a reaction of 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane (TATD) with 15N-labeled ammonium chloride was carried out. The 15N NMR and GC-MS experiments indicated that 15N was incorporated into TATU, TABO, and urotropine.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 49, Issue 13, 24 March 2008, Pages 2154-2158
Journal: Tetrahedron Letters - Volume 49, Issue 13, 24 March 2008, Pages 2154-2158
نویسندگان
Augusto Rivera, MartÃn E. Núñez, Eliseo Avella, Jaime RÃos-Motta,