Use of1H and13C NMR spectroscopy to determine the stereochemistry of 1 - methyl- δ4-octalin- 1,2-dicarboxylic acids and their derivatives
✍ Scribed by V. A. Denisenko; V. L. Novikov; A. V. Kamernitskii; G. B. Elyakov
- Book ID
- 112487479
- Publisher
- Springer
- Year
- 1977
- Tongue
- English
- Weight
- 262 KB
- Volume
- 26
- Category
- Article
- ISSN
- 1573-9171
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
During our investigation of conversion from penicillins to cephalosporins, we needed to assign three isomeric products, obtained fran the reaction in the preceding paper,' to the four possible structures, %, 2o-(3 and 28-chloro-substituted methyl phthalimidopenicillanates (a, and 3B-(2 and 3a-chloro
This paper describes the unequivocal structural elucidation of a new kind of Delta2-pyrazoline derivatives carried out by means of monodimensional 1H and 13C NMR spectroscopies, bidimensional ones such as HMBC and HMQC experiments, and NOEDIFF effects. Conformational analysis of this molecule agrees
The relative orientation of substituents in the opposite rings of one of the isomeric 4,7-dichloro-5,8,12,19 tetramethoxy-13,1Cbis[~~methoxycarbonylphenyl)butyl~[2.2~paracyclophanes was determined by establishing by NOE their orientation relative to the bridge protons, which thus served as 'space-sp