ELECTRON IMPACT STUDIES .39. PROXIMITY EFFECTS IN MASS SPECTRA OF AROMATIC CARBONYL COMPOUNDS CONTAINING ADJACENT METHOXY-SUBSTITUENTS

被引:66
作者
BOWIE, JH
WHITE, PY
机构
[1] Department of Organic Chemistry, University of Adelaide
来源
JOURNAL OF THE CHEMICAL SOCIETY B-PHYSICAL ORGANIC | 1969年 / 02期
关键词
D O I
10.1039/j29690000089
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Peaks due to M - H2O are observed in the mass spectra of aromatic carbonyl compounds which contain an ortho (or peri) methoxy-substituent. This process is of diagnostic value for simple systems, but cannot be extended to those systems which have a large number of oxygen-containing substituents. The fragmentation has been studied by 2H and 18O labelling. The properties of the M - 18 fragment in the spectrum of o-methoxybenzaldehyde correspond to those of a benzofuran radical ion.
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页码:89 / &
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