Premium
13 C NMR spectroscopy of natural substances: IV— 13 C NMR studies of trachylobane diterpenes: Complete carbon assignment
Author(s) -
Ar A.,
Mondelli R.,
St Pyrek J.
Publication year - 1979
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270120708
Subject(s) - chemistry , nuclear magnetic resonance spectroscopy , spectroscopy , diterpene , proton , carbon 13 , reagent , carbon 13 nmr , analytical chemistry (journal) , computational chemistry , stereochemistry , organic chemistry , physics , nuclear physics , quantum mechanics
The diterpene trachylobane and a series of derivatives have been completely analysed by FT 13 C NMR spectroscopy. All 13 C frequencies for trachylobanol have been unambiguously assigned by experimental techniques, i.e. by proton single‐frequency selective decoupling and shift reagent experiments. Shift calculations have been performed for the parent compound by using known methods. The results are discussed in comparison with the experimental data. Satisfactory agreement between predicted and experimental values has been obtained.