Molecular dynamics of (Z)-1-(2-hydroxy-5-methyl-3-nitrophenyl)ethanone oxime and (E)-2-hydroxy-5-methylacetophenone thiosemicarbazone in solution studied by NMR spectroscopy
Mass spectra of 1-(2′-hydroxy-5′-alkylphenyl)-1-alkanone (E)-oximes
作者:Marek Łozyński、Ewa Krzyzanowska
DOI:10.1002/oms.1210210108
日期:1986.1
AbstractThe mass spectra of 1‐(2′‐hydroxy‐5′‐alkylphenyl)‐1‐ethanone (E)‐oximes 1–6 and 1‐(2′‐hydroxy‐5′‐methylphenyl)‐1‐alkanone (E)‐oximes 7–12 are given and the major fragmentation pathways discussed. The simultaneous loss of water and alkyl moieties from the molecular ion indicates that a skeletal rearrangement take place and a cycloheptatrienyloheterocyclic system is formed. The McLafferty rearrangement, γ‐fission in the side aliphatic chain and oxygen expulsion are discussed with evidence being drawn from accurate mass measurements, metastable ions and comparison with mass spectral data of related compounds.
BOULTON A. J.; TSOUNGAS P. G., J. CHEM. SOC. CHEM. COMMUN., 1980, NO 10, 421-422
作者:BOULTON A. J.、 TSOUNGAS P. G.
DOI:——
日期:——
JUSKOWIAK, M.;KRZYZANOWSKI, P., J. PRAKT. CHEM., 331,(1989) N, C. 870-872
作者:JUSKOWIAK, M.、KRZYZANOWSKI, P.
DOI:——
日期:——
ELKASABY, M. A.;SALEM, M. A. I., INDIAN J. CHEM., 1980, 19, N 7, 571-575
作者:ELKASABY, M. A.、SALEM, M. A. I.
DOI:——
日期:——
EL-KASABY, M. A.;SALEM, M. A. I., EGYPT. J. CHEM., 1980, 23, N 2, 123-136