کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1403630 | 1501806 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detailed 1H and 13C NMR structural assignment and relative stereochemistry determination for three new and one known semi-synthetic sesquiterpene lactones
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work is described a complete 1H and 13C NMR analysis for a group of four sesquiterpene lactones, three previously unknown. The unequivocal assignments were achieved by 1H NMR, 13C{1H} NMR, J-resolved, gCOSY, gHMQC, gHMBC and NOESY experiments and no ambiguities were left behind. All hydrogen coupling constants were measured, clarifying all hydrogen signals multiplicities.
► 1H and 13C NMR data for four semisynthetic sesquiterpene lactones.
► Full assignment of NMR data, including chemical shift and constant couplings.
► NOE, constant couplings and theoretical calculations to determine stereochemistry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1008, 25 January 2012, Pages 24–28
Journal: Journal of Molecular Structure - Volume 1008, 25 January 2012, Pages 24–28
نویسندگان
Daiane Cristina Sass, Vladimir Constantino Gomes Heleno, Ana Carolina Ferreira Soares, João Luis Callegari Lopes, Mauricio Gomes Constantino,