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1H-NMR- sowie 13C-NMR-spektroskopische Untersuchungen an neuen Azapseudophenalenonen - 1,2-Dimethyl-6H-pyrrolo-[3.2.1-ij]chinolin-6-one

✍ Scribed by Richard Neidlein; Ulrich Rietdorf

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
263 KB
Volume
315
Category
Article
ISSN
0365-6233

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General method of assignment of relative
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The 1H and 13C NMR spectra of cis-endo (a) and cis-exo (b) diastereoisomeric pairs of Ðve di †erently C-1-functionalized 2,4-dimethyl-8-oxabicyclo[3.2.1]oct-6-en-3-ones were completely assigned. Several trends regarding the variation of chemical shifts and coupling constants of hydrogen and carbon a

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The total assignment of the 1 H and 13 C NMR spectra of 24 cis-endo and 15 cis-exo diastereoisomers of C-1-substituted 2,4-dimethyl-8-oxabicyclo[3.2.1]oct-6-en-3-one derivatives was deduced from the concerted application of DEPT, COSY, HETCOR, HMBC, HMQC and PS-NOESY experiments. The relative stereo