The structure of a fungal metabolite, oxyrapentyn has been determined as shown in Fig. by application of a new NMR technique, long range J C-H resolved 2D spectroscopy (LRJR). One of the problems in the structural elucidation of complicated molecules by NMR spectroscopy is how to connect proton spi
Application of long range 1H/13C heteronuclear correlation spectroscopy (LR HETCOSY) to structure elucidation: The structure of murayaquinone
β Scribed by Yukiharu Sato; Rodger Kohnert; Steven J. Gould
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- French
- Weight
- 217 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
The structure of a polyketide-derived, g-phenanthraquinone streptomyces metabolite has been deduced from interpretation of a 2D heteronuclear correlation experiment that reveals long range lH-13C couplings.
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The 13C NMR spectra of a representative series of photoadducts derived from methylmaleic anhydrides and thiophene, containing the same basic carbon skeleton, were studied in order to establish a model for futnre structure elucidation of similar compounds. Selective heteronnclear 13C{114 NOE was appl
## Abstract A heteronuclear multiple quantum correlation (HMQC) experiment was used to correlate the ^6^Li and ^15^N chemical shifts of mixed aggregates of [^6^Li, ^15^N]lithium 2,2,6,6βtetramethylpiperidide with [^6^Li]LiBr, [^6^Li]LiCl, and [^6^Li]lithium cyclohexenolate. Optimization of the expe