## Abstract The complete ^1^H and ^13^C chemical shift assignments of six derivatives of resveratrol [(__E__)‐5‐[2‐(4‐hydroxyphenyl)ethenyl]‐1,3‐benzenediol] that possess leukotriene D4 receptor antagonistic activities are described. Two‐dimensional COSY, HMQC, HMBC and NOESY experiments, along wit
Complete assignment of the 1H and 13C NMR spectra of norbornene derivatives
✍ Scribed by Julie Fisher; Michael J. Gradwell
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 177 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The complete assignment of the ^1^H and ^13^C spectra of 2‐exo‐ and 2‐endo‐nor‐bornenemethanol is presented. Resonance assignment was achieved using ^1^H–^1^H double resonance, COSY and ^1^H/^13^C correlation spectra. Computer simulations of the H‐2 (exo or endo) proton decoupled spectrum for both isomers enabled scalar couplings to be determined.
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## Abstract The ^1^H and ^13^C NMR spectra of the deoxyhemigossypol derivatives 4‐isopropyl‐2,3‐dimethoxy‐6‐methylnaphthalene, 4‐isopropyl‐2,3‐dimethoxy‐6‐methyl‐1‐naphthaldehyde and 2,3‐dihydroxy‐4‐isopropyl‐6‐methyl‐1‐naphthaldehyde were assigned using one‐ and two‐dimensional NMR techniques, inc
## Abstract ^1^H and ^13^C NMR studies were carried out on benzanthrone and 3‐, 4‐, 6‐, 8‐, 9‐, 10‐ and 11‐chlorobenzanthrone. Complete assignments of proton and carbon resonances were made with the aid of HH‐COSY, NOESY, CH‐COSY and HMBC techniques. Substitution effects of a chlorine atom are not
## Abstract Unambiguous and complete assignments of ^1^H and ^13^C NMR chemical shifts for 15 limonoids, eight of them found in natural sources and seven other synthetic derivatives, are presented. The assignments are based on 2D shift‐correlated [^1^H,^1^H‐COSY, ^1^H,^13^C‐gHSQC‐^1^__J__(C,H), ^1^