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Stereochemical assignment at the C-13 carbon of pimaradienes by 13C NMR. A reassessment

✍ Scribed by Ross Beier

Publisher
John Wiley and Sons
Year
1978
Tongue
English
Weight
99 KB
Volume
11
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

According to reported results by Kato et al. in their 1977 paper, ^13^C data can not be used for assignment of stereochemistry at carbon‐13 in pimaradiene‐type compounds. By comparing well established ^13^C trends to the appropriate conformations, one can indeed predict the correct stereochemistry at C‐13 of pimaradienes. The result by this method correlates exactly with crystal structure data. ^13^C NMR is reliable for determination of C‐13 stereochemistry in the pimaradienes.

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