Abstract
Methiodides of corydine, isocorydine and isothebaine are O-demethylated in the ionic source of the mass spectrometer by hydrogen iodide formed on pyrolysis of the sample. The reaction is common in aporphine methiodides substituted in positions 1 and 11 by one hydroxyl and one methoxyl group. The behaviour can be explained by the combined action of the hydrogen bridge and steric strain.
Publisher
Institute of Organic Chemistry & Biochemistry
Cited by
4 articles.
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