Studies on in vitro antipyrine metabolism by 13C, 15N double labeled method
β Scribed by A. Nakagawa; K. Nakamura; K. Maeda; T. Kamataki; R. Kato
- Book ID
- 118342540
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 508 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0024-3205
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## Abstract Carbonβ13, carbonβ13 coupling constants and carbonβ13 chemical shifts have been measured in a series of phenyl substituted ethylenes and aromatics all doubly labelled with ^13^C at the olefinic positions (Ξ±,Ξ²β) or at neighbouring aromatic positions, tetraphenylcyclopentadienone labelled
Principal components analysis was applied to the 13C and 15N chemical shift data on a series of fifteen l-(para-substituted-phenyl)-3-acetyl-3-methyltriazene~. It was found that the halogen-substituted triazenes formed a class, based on substituent effects, which was different from the remaining ele