کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10244681 | 47698 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanism of CN bond breaking in hydrodenitrogenation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Mechanism of CN bond breaking in hydrodenitrogenation Mechanism of CN bond breaking in hydrodenitrogenation](/preview/png/10244681.png)
چکیده انگلیسی
CN bond rupture is the final step in the hydrodenitrogenation of nitrogen-containing molecules and occurs by substitution of the alkylamine by H2S to form an alkanethiol and NH3. To study the mechanism of the CN bond breaking, we investigated the reactions of the chiral 2-(S)-butylamine and of N,N-dihexylmethylamine. The amine-to-thiol substitution occurred not through a classic organic substitution reaction, but rather through (de)hydrogenation steps via an imine or through redox and (de)protonation steps, in which an alkyliminium cation acts as an intermediate. For alkylamines and dialkylamines, the reaction may well occur via imine intermediates, but for trialkylamines, the intermediate can only be an iminium ion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 234, Issue 2, 10 September 2005, Pages 509-512
Journal: Journal of Catalysis - Volume 234, Issue 2, 10 September 2005, Pages 509-512
نویسندگان
R. Prins, Y. Zhao, N. Sivasankar, P. Kukula,