13 C NMR of diterpenes: Use of the C‐19 methyl group as a probe for locating a tetrasubstituted double bond | Zendy

Taran Martine | Zendy; Miguel Bernadette ArreguySan | Zendy; Delmond Bernard | Zendy; Petraud Michel | Zendy; Barbe Bernard | Zendy

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13 C NMR of diterpenes: Use of the C‐19 methyl group as a probe for locating a tetrasubstituted double bond

Author(s) -

Taran Martine,

Miguel Bernadette ArreguySan,

Delmond Bernard,

Petraud Michel,

Barbe Bernard

Publication year - 1987

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1260251216

Subject(s) - chemistry , double bond , group (periodic table) , stereochemistry , carbon 13 nmr , diterpene , chemical shift , nmr spectra database , methyl group , skeleton (computer programming) , carbon 13 nmr satellite , nuclear magnetic resonance spectroscopy , fluorine 19 nmr , spectral line , organic chemistry , physics , astronomy , computer science , programming language

The 13 C NMR spectra of diterpenic derivatives having pimarane, isopimarane and the (13S) rosane skeleton have been recorded. This analysis has shown that the chemical shift of the 19‐CH 3 group depends on the position of the tetrasubstituted double bond in these skeletons. The C‐19 methyl group can be used as a probe for distinguishing the isopimarane from the rosane skeleton.

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