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The mass spectra of some naturally-occurring 3,4-dialkoxy furocoumarins and their nor-derivatives (1972)

MacLeod, J. K. ; Nakayama, M.

Chichester : Wiley-Blackwell

Biological Mass Spectrometry 6 (1972), S. 293-300

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ISSN: 0030-493X

Keywords: Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The mass spectral fragmentations of several naturally-occurring 3,4-dialkoxy furocoumarins from the Halfordia species and their nor-derivatives have been studied using deuterium labelling and metastable analysis. Halfordin (I), isohalfordin (VI) and halkendin (X) show a common major breakdown pathway involving initial loss of a methyl radical from the 3-methoxy group followed by expulsion of CO, then loss of C2H3O, the latter fragment containing the methyl group from the 4-position.

Additional Material: 8 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/oms.1210060307

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