The azo-coupling products have been prepared from 4-aminopent-3-en-2-one and 4-chloro- or 4-nitrobenzenediazonium ion. Structure of the products obtained was studied by means of multinuclear NMR spectroscopy in CDCl3 solutions and X-ray diffraction in solid state. Both products are predominantly present as azo forms in both the solution and the solid state, the azo form content being higher in solid state. The substituent effect on azo-hydrazone tautomeric equilibrium of the substances is more significant in solution than in solid state.
Tautomerism and hydrogen bonding in reaction products from 4-aminopent-3-en-2-one and diazonium ions
BERTOLASI, Valerio;
2002
Abstract
The azo-coupling products have been prepared from 4-aminopent-3-en-2-one and 4-chloro- or 4-nitrobenzenediazonium ion. Structure of the products obtained was studied by means of multinuclear NMR spectroscopy in CDCl3 solutions and X-ray diffraction in solid state. Both products are predominantly present as azo forms in both the solution and the solid state, the azo form content being higher in solid state. The substituent effect on azo-hydrazone tautomeric equilibrium of the substances is more significant in solution than in solid state.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
