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Collisional activation of metal cationized and deprotonated triterpenoids: Charge remote fragmentations

✍ Scribed by K. P. Madhusudanan; Chandan Singh

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
426 KB
Volume
27
Category
Article
ISSN
1076-5174

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✦ Synopsis

The collisional activation spectra of lithiated and bariated cations and deprotonated anions of the triterpenoic acids hederagenin and oleanoic acid and their acetyl derivatives were examined. On collisional activation these precursors undergo similar charge-remote fragmentations including ring cleavage reactions and loss of substituents from the ring furthest from the site of charge. The presence of a double bond in ring C induces charge-remote retro-Diels-Alder reaction in these molecules.

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