Complete structural assignment in a series of thieno[3,4-b]quinoxalines by means of 2D NMR
✍ Scribed by Lucien Legendre; Jacqueline Mahuteau; Marcel Miocque; Jean-Michel Vierfond
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 259 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract ^13^C NMR chemical shifts of a series of 2′,3′,4′‐trimethoxylated flavones are reported. The ^13^C NMR chemical shifts of 2′,3′, 4′‐trimethoxyflavone was reinvestigated by 2D NMR. It is shown that two signals which were assigned by the lanthanide shift reagent method in an earlier study
The 1H and 13C NMR spectra of 2-phenyl-3H-naphtho [2,1-b][1,4]oxazin-3-one, 2-p-methoxyphenylnaphtho [1,2-d]oxazole and 2-phenylnaphtho[1,2-d]oxazole were totally assigned using a combination of one-and two-dimensional NMR techniques. In addition to correlation of the proton signals by a COSY spectr
## Abstract The ^1^H and ^13^C NMR spectra of compounds **1**–**11** and **16**–**22** in CDCl~3~ and DMSO‐__d__~6~ solutions allowed structural assignment to regioisomers **1/5** and **2/6** and their regioselective cyclization products **16–18** utilizing one‐ and two‐dimensional NMR techniques (