Application of the Eu(DPM)3 chemical shift reagent to the determination of the molecular weight of poly(propylene glycol) by NMR
β Scribed by Ho, Floyd F.-L.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1971
- Tongue
- English
- Weight
- 223 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0449-2986
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An assignment of relative configurations has been achieved for the diastereomeric racernates(lR2R,lS2S) and (1R2S, 1S2R) of 3,3-dimethyl-l,2-diphenylbuta~-l-ol through the comparative analysis of the respective chemical shifts induced by Eu(fod), in the 'H and '"C NMR spectra, and the corresponding
## Abstract The isomeric tricyclo[4.4.1.1^2,5^]dodecanβ11βols have been synthesized from the (6+4) cycloaddition product of tropone with cyclopentadiene. The configuration and conformation of each isomer was determined from the proton shift gradients induced in the olefinic proton signals in the ^1