The mass spectral fragmentation of isoxazolyldihydropyridines

Gary Knerr, John I. Mckenna, David A. Quincy, N. R. Natale

Research output: Contribution to journalArticlepeer-review

Abstract

The mass spectral fragmentation of 4‐isoxazolyl‐1,4‐dihydropyridines has been examined with the aid of linked metastable scanning. Three prominent pathways involve (i) O‐N bond cleavage of the isoxazole followed by the loss of R2CN, (ii) loss of carboalkoxy from the 3‐ and/or 5‐ position of the dihydropyridine and, (iii) loss of the 4‐isoxazolyl‐substituent.

Original languageEnglish
Pages (from-to)1429-1433
Number of pages5
JournalJournal of Heterocyclic Chemistry
Volume24
Issue number5
DOIs
StatePublished - 1987

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