Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1409916 | Journal of Molecular Structure | 2010 | 4 Pages |
Abstract
The direct E/Z configuration assignment of tri- and tetra-substituted stilbenes (and other analogous olefins) when only one of the isomers is available is a quite challenging task. Sometimes, a chemical transformation or some other tedious method is necessary for determination of the double bond substitution pattern. In this paper, we relied on theoretical calculation of chemical shifts as a complementary tool for 1H NMR determination of the configuration of an α-phenylcinnamic acid prepared as a unique isomer by the Perkin reaction.
Related Topics
Physical Sciences and Engineering
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Authors
Rodrigo Rotta, Álvaro Cunha Neto, Dênis Pires de Lima, Adilson Beatriz, Gil Valdo José da Silva,