Abstract
AbstractPractical strategies for the structural elucidation of small organic molecules are described for typical organic chemists. The analysis of an unknown is divided into three stages. First, structural connectivity is deduced from through‐bond correlation experiments. Next, the relative stereochemistry is determined from NOE correlations and coupling constants (both proton–proton and proton–carbon). Finally, the proposed structure is verified by a careful inspection of all of the observed data. Tactics for the management of overlapping peaks, low sample concentrations, and high molecular weights are also described. This approach is illustrated by the step‐by‐step analyses of a simple test compound, menthol, and a complex polycyclic natural product, salvinorin A. Detailed procedures and sample data for menthol are provided as a practical tutorial. This will enable organic chemists to elucidate a wide range of complex structures by using modern NMR spectroscopic experiments.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
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