Original scientific paper

A Mass Spectral Study of Substituent Effects in Some Substituted N,N-Dimethyl-N'-Phenyl- and N'-Pyridyl-Formamidines

M. Medved ; J. Stefan Institute, University of Ljubljana, Yugoslavia
S. Stavber ; J. Stefan Institute, University of Ljubljana, Yugoslavia
V. Kramer ; J. Stefan Institute, University of Ljubljana, Yugoslavia
L. Benčić ; J. Stefan Institute, University of Ljubljana, Yugoslavia
J. Marsel ; Faculty for Natural Sciences and Technology, Department of Chemistry, University of Ljubljana, 61000 Ljubljana, Slovenia, Yugoslavia

Abstract

Several competing fragmentation reactions, initiating directly
from the molecular ion, which are common to p- and m- substituted
N,N-dimethyl-N'- phenyl-formamidine, were examined. IP, AP and
daughter/parent ion ratio measurements were made to provide some
insight into the substituent effects on reaction mechanisms. The
results obtained were compared with those found for the compounds
N,N-dimethyl-N'-pyridyl-4-formamidine and isomeric 3-formamidine.
The substituent constant o/ for the nitrogen in the pyridine
ring was determined.

Keywords

Hrčak ID:

196337

URI

https://hrcak.srce.hr/196337

Publication date:

20.7.1977.

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