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Stereostructure assignment of flexible five-membered rings by GIAO 13C NMR calculations: prediction of the stereochemistry of elatenyne.

Abstract:

The stereochemistry of conformationally mobile five-membered rings is often hard to assign from NMR data, and [2,2']bifuranyl systems are even more challenging. GIAO (13)C NMR chemical shifts have been calculated for a series of [2,2']bifuranyl and pyranopyran species, taking into account their conformational flexibility using weighted averages of the data for all low energy conformers. We show that calculation of (13)C NMR chemical shifts using the geometries obtained using molecular mechani...

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Publication status:
Published

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Publisher copy:
10.1021/jo8003138

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Organic Chemistry
Goodman, JM More by this author
Journal:
The Journal of organic chemistry
Volume:
73
Issue:
11
Pages:
4053-4062
Publication date:
2008-06-05
DOI:
EISSN:
1520-6904
ISSN:
0022-3263
URN:
uuid:49ea621a-5a09-4388-9356-e37821d68b51
Source identifiers:
116798
Local pid:
pubs:116798
Language:
English

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