Published in
Royal Society of Chemistry, Journal of the Chemical Society, Chemical Communications, 9, p. 1143-1145, 1994
DOI: 10.1039/c39940001143
Links
Tools
Structure of 3(5)-methyl-4-nitropyrazole in the solid state: Tautomerism, crystallography and the problem of desmotropy
Journal article published in 1994 by
Concepción Foces-Foces,
Antonio L. Llamas Saiz 
,
Rosa M. Claramunt,
Concepción López,
José Elguero
,
Rosa M. Claramunt,
Concepción López,
José Elguero
This paper is available in a repository.
Full text: Download
Published version:
archiving forbidden
Data provided by 
Abstract
The first example of desmotropy in azoles has been found concerning 3-methyl-4-nitropyrazole and its tautomer, 5-methyl-4-nitropyrazole: the crystal and molecular stucture of both tautomers has been determined by X-ray analysis, 13C CPMAS NMR spectroscopy has been used for studying the isomerization processes in the solid state.