1H-N. M. R. study of the syn! anti ratio of oximes and 2,4- dinitrophenyl hydrazones determined by ASIS and LIS methods

Scientific paper - Original scientific paper

• Author: M. Žinić
• Author: M . Štromar
• Author: M. Malnar
• Author: D. Kolbah
• Author's institution: University of Zagreb; Faculty of Pharmacy and Biochemistry; (Department of biochemistry and molecular biology)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry

Abstract (english)

Starting from 1-chloro-butane-2-one (I) and 3-chloro-butane-
2-one (II), oximes Illa, b and IV as well as 2,4-dinitrophenyl
hydrazones Va, b and VI were prepared. 'H-nmr spectra show that
I gives a mixture of isomeric oximes Illa and IIIb (21 : 79) and
2,4-dinitrophenyl hydrazones Va and Vb (20 : 80). From ketone II
only anti isomers IV and VI were obtained. Signals were assigned
using ASIS method. From paramagnetic shifts obtained by LIS
method it was concluded that unshared pair of nitrogen electrons
participates in complex formation with rare earth atom.

• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Croatica Chemica Acta
• Numbering: vol. 46, no. 1, pp. 45-50
• p-ISSN: 0011-1643
• e-ISSN: 1334-417X
• URN:NBN: urn:nbn:hr:163:168186
• Publication: 1974
• Document URL: https://hrcak.srce.hr/196837
• Type of resource: Text
• Access conditions: Open access
• Repository: Repository of Faculty of Pharmacy and Biochemistry University of Zagreb
• Created on: 2020-05-07 15:03:03