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Structural assignment of isomeric chain demethylated retinals by 1H NMR spectroscopy

โœ Scribed by A. D. Broek; J. M. L. Courtin; J. R. Mellema; J. Lugtenburg; K. Nicolay; K. Dijkstra; R. Kaptein

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
234 KB
Volume
19
Category
Article
ISSN
0749-1581

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โœฆ Synopsis

Abstract

Geometric isomers of allโ€transโ€9โ€demethylโ€, โˆ’13โ€demethylโ€ and โˆ’9,13โ€bisdemethylretinal were prepared. The 360 MHz ^1^H NMR spectra of 13 geometric isomers of these three demethylated retinal systems have been measured. The chemical shift and coupling constant values in each case allowed an unambiguous assignment of the structure of each compound.

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