Mass Spectrometry in Structural and Stereochemical Problems. CXX.¹ Electron-Impact-Induced Fragmentation Processes of Methoxycarbonylhydrazones²

Identification of Gaseous Organic Ions by the Use of “Metastable Peaks”1

“…M. Rosenstock and M. Krauss in "Mass Spectrometry of Organic Ions," F. W. McLafferty, Ed., Academic Press Inc., New York, N. Y., 1963, p 1. (8) To whom requests for reprints should be sent.…”

“…Department of Chemistry, Purdue University Lafayette, Indiana 47907 Received August 8,1966 Skeletal and Hydrogen Rearrangements in Aryl Alkyl Ether Ions1,2 Sir:…”

Mass spectrometry

“…Hydrogen rearrangements in the mass spectra of hydrazones are reported (610), as are rearrangements in 4-oxoandrostanes (642). Mass spectra are reported for polyenals (178), aliphatic ketones (297, 734, 736), pentafluoroacetone (760), unsaturated ketones (1460) , ß-diketones (212) and 7-ketones (943), -oxides and ketones (1291), cyclobutanones (66), 1,3-cyclohexanediones (1506) and 2-alky 1-1,3-cyclohexanediones (1507), aliphatic a,0epoxyketones (1264), acyclic 1,3-diketones (1314), bicyclohexanones (269), dimedone and some derivatives (1032), norbornyl ketones (1458), indanetrione (238), methoxy carbonylhydrazones (1012), deoxyanisoin and derivatives (947), asperenone and tetrahydroasperenone (789), phthiodiolone A and phthiocerol A and B (1081, 1082), and various other ketones (936).…”