The =C chemical shifts of a series of isoflavones having hydroxy, acetoxy, methoxy and methylenedioxy substituents are compared. Some general relationships between substitution patterns and chemical shifts, useful for the identitication of naturally occurring isoflavones, are outlined.
Combined retrieval system for infrared, mass, and carbon-13 nuclear magnetic resonance spectra
β Scribed by Zupan, Jure.; Hadzi, Dusan.; Penca, Matej.; Marsel, Joze.
- Book ID
- 125898547
- Publisher
- American Chemical Society
- Year
- 1977
- Tongue
- English
- Weight
- 794 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0003-2700
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The ^13^C n.m.r. spectra of some 2βheteroadamantanes and 1βsubstituted 2βheteroadamantanes are reported. The influences of the heteroatoms in the adamantane framework, and those of the substituents attached to it, on the ^13^C chemical shifts of the adamantane carbons are investigated a
## Abstract The ^13^C NMR spectra were determined and signals assigned to the various carbons of veratridine and cevadine.
## Abstract The ^13^C NMR spectra were determined and signals assigned to the various carbons of the alkamines veracevine, germine and zygacine derived from steroidal alkaloids of the ceveratrum class. Assignment of signals was aided by analysis of the partially relaxed spectrum of cervagenine 9,12