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Digitale Medien

Mass spectral fragmentation studies in usnic acid and related compounds (1974)

Kutney, James P. ; Sanchez, Ignacio H. ; Yee, Trevor H.

Chichester : Wiley-Blackwell

Biological Mass Spectrometry 8 (1974), S. 129-146

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ISSN: 0030-493X

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: A study of the fragmentation patterns of the naturally occurring lichen substance, usnic acid (I) and various other chemically and biochemically derived compounds is reported and discussed. From these results it is demonstrated that the characteristic fragmentation patterns observed are of considerable utility in determining not only the substitution patterns on these highly oxygenated molecules, but also the structural elucidation of new compounds within the series.

Zusätzliches Material: 11 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/oms.1210080117

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Digitale Medien

Mise en evidence de la chiralité de l'édifice spirophosphoranique (1973)

Houalla, D. ; Sanchez, M. ; Wolf, R.

Chichester : Wiley-Blackwell

Organic Magnetic Resonance 5 (1973), S. 451-452

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ISSN: 0030-4921

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Beschreibung / Inhaltsverzeichnis: The chirality of the spirophosphorance skeleton of the recemic mixture 2a, 2ā, is revealed by the NMR chiral shift reagent.

Notizen: La chiralité de l'édifice spirophosphoranique dans le mélange racémique 2a, 2ā, est décelée, en RMN, à l'aide d'inducteur de déplacement chimique optiquement actif.

Zusätzliches Material: 1 Ill.