✦ LIBER ✦

An electron impact study of HCN elimination from indole by use of 13C labelling

✍ Scribed by Madeleine Corval

Publisher: John Wiley and Sons
Year: 1981
Tongue: English
Weight: 550 KB
Volume: 16
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210161005

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✦ Synopsis

Abstract

The study of the loss of HCN from the molecular ions of [2‐^13^C]indole and [3‐^13^C]indole shows that, to a good approximation, only the two carbon atoms of the pentagonal ring are involved in this fragmentation process, contrary to the behaviour of the H atoms; the C‐2 atom is eliminated predominantly, chiefly in the ion source (85–90%) and a little less in the metastable energy range (75–80%). The losses of ^13^CCH~3~^˙^ and C~2~H~3~^˙^ from the [MH^12^CN]^+˙^ ions of the two compounds suggest the occurrence of different structures, providing evidence for several mechanisms of HCN elimination.

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