Carbon-13-proton long-range couplings of phenols. Hydrogen bonding and stereospecificity
โ Scribed by Chang, Ching-Jer.
- Book ID
- 126111972
- Publisher
- American Chemical Society
- Year
- 1976
- Tongue
- English
- Weight
- 349 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0022-3263
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract Proton coupled ^13^C NMR spectra have been recorded for some acylphloroglucinol derivatives. Significant couplings over two, three and four bonds were observed between the hydroxyl proton and aromatic carbons for those compounds where the hydroxyl group is hydrogen bonded strongly enoug
## Abstract The application of selective population inversion (SPI) to the assignment of ^13^C resonances and to the determination of the relative sign of ^13^C๏ฃฟ^1^H coupling constants is demonstrated for 1โphenylโ1,2โdibromoโ2โnitroethane. A negative sign for the geminal Cโ2๏ฃฟHโ1 coupling constant
## Abstract The ^1^H and ^13^C spectra of __endoโendo__โtetracyclo[6.1.1^3,6^.0^2,7^]dodecโ4โenโ10โol have been interpreted using shift reagents and HETCOR experiments. Carbon chemical shifts are compared with tetracyclic analogs and bicyclic model compounds. Evidence for upfield ฮด and ฮต effects of