کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1196140 | 964455 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of Michael-Michael-retro Michael Addition Catalyzed by 9-Amino-9-Deoxyepiquinine Using ESI-MS
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
The Michael-Michael-retro Michael addition catalyzed by 9-amino-9-deoxyepiquinine was monitored and the major intermediates and catalyst in the catalytic cycle were detected and characterized using ESI-MS/MS for the first time. Some important isomeric intermediates including isomeric enamine and imine structures were tentatively differentiated and further studied by theoretical calculations. Fragment ions of protonated catalyst indicate that proton possibly influences the conformation of the catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the American Society for Mass Spectrometry - Volume 18, Issue 11, November 2007, Pages 2074–2080
Journal: Journal of the American Society for Mass Spectrometry - Volume 18, Issue 11, November 2007, Pages 2074–2080
نویسندگان
Zhi-Jun Wu, Shi-Wei Luo, Jian-Wu Xie, Xiao-Ying Xu, Dong-Mei Fang, Guo-Lin Zhang,