Control of the regiospecific synthesis of dialkylpyrrolizidinones and their stereochemical behaviour using gas chromatography/mass spectrometry with chemical ionization.

Autor:	Lange, C., Provot, O., Mulheim, C., Celerier, J.-P., Lhommet, G.
Zdroj:	Organic Mass Spectrometry; 1992, Vol. 27 Issue 3, p326-330, 5p
Abstrakt:	Pyrrolizidine alkaloids were synthesized via the cyclization of an epoxide prepared from a lactam. The regiospecific control of this reaction is demonstrated using gas chromatography/mass spectrometry. Ammonia chemical ionization mass spectrometry permits the determination of the cis- trans stereochemistry of the final products. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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