1977
DOI: 10.1002/cber.19771100504
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Spiro‐Verbindungen, VI. Stereoisomere Acorenone. PFT‐13C‐NMR‐Spektren und massenspektroskopische Untersuchungen

Abstract: The I3C NMR spectra of the four stereoisomeric acorenones 1-4 (l-isopropyl-4,8-dimethylspiro[4.5]dec-8-en-7-ones) allow the assignment of these spiranes to the 1,4-trans (1/2) or 1,4-cis (3/4) series, respectively; in case of the cis-isomers 3 and 4 the relative configuration at the spirochirality center C-5 can be determined. -Comparison of different intensities of corresponding ion pairs in the mass spectra of 1-4 allows the unequivocal discrimination of the four stereoisomers.In friiheren Mitteilungen ' -4,… Show more

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Cited by 13 publications
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“…The stereochemical configurations of stereoisomeric spiro acorenones were confirmed by Kutschan et al (248) using 13C NMR spectra.…”
Section: Buttkus Et Al (mentioning
confidence: 75%