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Unusual Chemical Shifts in the Nuclear Magnetic Resonance Spectra of 7- and 11-Keto Steroids

โœ Scribed by Williams, D. H.; Bhacca, N. S.; Djerassi, Carl.


Book ID
126903787
Publisher
American Chemical Society
Year
1963
Tongue
English
Weight
462 KB
Volume
85
Category
Article
ISSN
0002-7863

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## Abstract The Ketonic ^13^C NMR signals of a series of 6โ€hydroxyโ€5โ€oxobicyclo[2.2.2]octโ€7โ€eneโ€2โ€carboxylic acid lactones and of haplophytine and related __N__โ€substituted 3โ€piperidinones occur at exceptionally high field; the structural factors which are responsible have been elucidated by compar