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On the mechanism for loss of CO from aromatic oximes. Evidence for a nucleophilic attack from fluorine labelling

✍ Scribed by Peter C. Vijfhuizen; Henk Van Der Schee; Johan K. Terlouw

Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
538 KB
Volume
11
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

The mehanisms for loss of CO from benzaldoxime and acetophenone oxime have been investigated with the aid of both fluorine and deuterium labelling as well as field free region metastable peak shapes. Kinetic evergy release data and the metastable ion abundance raion test were used to obtain information about the product ions. It is proposed that loss of CO from both are generated via the nucleophilic attack of the oxygen lone pair eletrons at the ortho position of the phenyl ring as the first step in the reaction sequence.

📜 SIMILAR VOLUMES

On the loss of CH from o-methylbenzaldox
On the loss of CH from o-methylbenzaldoxime. Evidence for an ortho assisted oxime→nitrone isomerization
✍ Peter C. Vijfhuizen; Johan K. Terlouw 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 168 KB

## Abstract Isomerization of oxime molecular ions into nitrone molecular ions upon electron impact does not generally occur, but it was established with the aid of deuterium labelling that it is essential for loss of CH from __o__‐methylbenzaldoxime.