scholarly journals 4,4-Dimethyl effect (2). Syntheses, 1H- and 13C-nuclear magnetic resonance spectra, and the conformations of 6.ALPHA.- and 6.BETA.-substituted-1,1,10.BETA.-trimethyl-trans-decal-2-ones (8.ALPHA.- and 8.BETA.-substituted-4,4,10.BETA.-trimethyl-trans-decal-3-ones), models of 4,4-dimethyl-steroid- and triterpenoid-3-ketones.

1981 ◽  
Vol 29 (11) ◽  
pp. 3238-3248 ◽  
Author(s):  
YOSHISUKE TSUDA ◽  
KIMIHIRO YOSHIMOTO ◽  
TAKESHI YAMASHITA ◽  
MIYUKI KANEDA
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Nuclear Magnetic Resonance Spectra ◽  
13C Nuclear Magnetic Resonance ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

13C nuclear magnetic resonance spectra of the spirobenzylisoquinoline alkaloids and related model compounds

1977 ◽  
Vol 55 (18) ◽  
pp. 3304-3311 ◽  
Author(s):  
Donald W. Hughes ◽  
Bala C. Nalliah ◽  
Herbert L. Holland ◽  
David B. MacLean
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Isoquinoline Alkaloids ◽  
Model Compounds ◽  
Related Model ◽  
Nuclear Magnetic Resonance Spectra ◽  
13C Nuclear Magnetic Resonance ◽  
C Nmr ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The natural abundance 13C nuclear magnetic resonance spectra of a number of spirobenzylisoquinoline alkaloids and related model compounds have been recorded. The carbon resonances of the alkaloids were assigned by comparison with the spectra of other isoquinoline alkaloids and with those of the model compounds. It has been shown that 13C nmr spectroscopy may be used to differentiate between diastereomers in this series.

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