HIGH RESOLUTION MASS SPECTROMETRY .5. CYCLIC ESTERS OF ALIPHATIC ALPHA-HYDROXY ACIDS

被引：4

作者：

GOULDEN, JDS

MILLARD, BJ

机构：

[1] National Institute for Research in Dairying, Reading, Berkshire, Shinfield

[2] School of Pharmacy, London, WC.1

来源：

ORGANIC MASS SPECTROMETRY | 1969年 / 2卷 / 09期

关键词：

D O I：

10.1002/oms.1210020904

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The main fragmentation sequences of glycollide and its homologues are initiated by fission of a COO bond, leading to the formation of fragment ions of low, m/e, such as [R1CO]+ and [CR1R2CCO]+. When a hydrogen atom is present on a ring carbon atom, 1,3 hydrogen migration occurs to produce [CHR2OH]+. In case where a ring carbon atom carries an alkylchain ⩾ C2H5, a McLafferty rearrangement occurs with the adjacent carbonyl group. When both ring carbon atoms are dimethyl substituted, a 1,4 hydrogen migration must be invoked to account for the observed fragmentation sequence. Copyright © 1969 John Wiley & Sons, Ltd.

引用

页码：893 / &

共 8 条

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