Complete 1 H and 13 C chemical shifts assignments for 12 octahydroisoquinoline derivatives, intermediates in the synthesis of morphine, were made based on 2D NMR spectroscopy. The stereochemistry of the compounds characterized by the decahydroisoquinoline skeleton was elucidated based on the value o
Asymmetric nitrogen. 57. Investigation of the stereochemistry of aziridinecarboxylic acid derivatives by NMR
✍ Scribed by I. I. Chervin; A. A. Fomichev; A. S. Moskalenko; N. L. Zaichenko; A. É. Aliev; A. V. Prosyanik; V. N. Voznesenskii; R. G. Kostyanovskii
- Book ID
- 112446809
- Publisher
- Springer
- Year
- 1988
- Tongue
- English
- Weight
- 770 KB
- Volume
- 37
- Category
- Article
- ISSN
- 1573-9171
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Good agreement has been found between the nitrogen inversion parameters for both N-methylene I+\* diastereotopicL protons and ring substituents in the \* CH$ ' N' H \*l= system (Fig.l),confirming that Roberts' method3 is applicable
The oxidized forms of the redox proteins putidaredoxin and putidaredoxin-15N were prepared by insertion of suitable plasmids into E. coli and the structures of the proteins were studied by homo-and heteronuclear 1H and 15N NMR methods, including identiÐcation of 15N resonance types by one-and two-di