ChemInform Abstract: The Mass Spectral Fragmentation of Isoxazolyldihydropyridines

Autor: Gary Knerr, John I. McKenna, David A. Quincy, Nicholas R. Natale
Rok vydání: 1988
Předmět:
Zdroj: ChemInform. 19
ISSN: 0931-7597
DOI: 10.1002/chin.198815042
Popis: 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.
Databáze: OpenAIRE