Title: Nmr-spectroscopy of derivatives of 2,4-dichlorophenoxyacetyl hydrazide
Authors: Himmelreich, U
Tschwatschal, F
Borsdorf, R #
Issue Date: Oct-1993
Publisher: Springer-verlag wien
Series Title: Monatshefte fur chemie vol:124 issue:10 pages:1041-1051
Abstract: Derivatives of 2,4-dichlorphenoxyacetyl-hydrazides were prepared by reaction of the hydrazides with different aldehydes. NMR-spectroscopic investigations of these compounds show the existence of rotamers resulting from a nitrogen-carbonyl bond rotation. Contrary to substituted dithiocarbacinic acid derivatives no E/Z-isomerism relative to the C=N double bond could be demonstrated. In order to prove the structures we utilized chemical shift differences in the H-1-, C-13- and N-15-NMR-spectra, NH and CH coupling constants and NOE-difference measurements. The barriers of rotation were determined by NMR-measurements at various temperatures and line shape analysis using the computer program D-NMR 3.
ISSN: 0026-9247
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Radiology
Biomedical MRI
# (joint) last author

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