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An unusual HgCl rearrangement in electron impact mass spectrometry of some halomercurioalkyl derivatives
Author(s) -
Ghezzo Elena,
Sturaro Alberto,
Traldi Pietro,
Bravo Pierfrancesco,
Viani Fiorenza
Publication year - 1990
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570270523
Subject(s) - chemistry , metastability , electron ionization , mass spectrometry , ion , primary (astronomy) , electron , computational chemistry , medicinal chemistry , organic chemistry , chromatography , ionization , nuclear physics , physics , astronomy
The electron impact mass spectrometric behaviour of three 2‐methyl‐2‐chloromercuriomethyl‐2,6‐dihydro‐5 H ‐pyrano[3,2‐ c ]quinolin‐5‐ones have been studied in detail with the aid of metastable ion data. The primary loss of C 4 H 7 , necessarily involving an unusual HgCl rearrangement, is discussed and justified by the formation of a thermodinamically stable Hg‐containing cyclic structure.