New route to a pyrazoline scaffold featuring original substitutions and its crystal structure
Résumé
Pyrazolines are among the heterocyclic compounds, a class that exhibit a range of applications in a wide diversity of fields. We report here, a novel approach to the pyrazoline scaffold featuring an unprecedented substitution pattern. This synthesis is carried out from a diazoester and promoted by the addition of a phosphinyl chloride through a putative cyclic phosphinazine. The pyrazoline has been fully spectroscopically characterized and the structure has been further assessed by X-ray diffraction, as the new compound crystallized from toluene in a monoclinic crystal lattice.
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