La synthese et les proprietes spectroscopiques en rmn de 44 derives nitres de l'indazole dont 23 sont decrits pour la premiere fois, ont ete etudiees. En fonction des rendements, on indique la meilleure voie d'acces aux derives halogenes methyle's (halogenation avant ou apres methylation du nitro indazole). La reactivite' relative des differents sites du cycle vis a vis de l'agent electrophile est discutee.
Synthese and nmr study of forty-four nitroindazoles in which twentry-three were never published have been carried out. The best way to obtain the halogenomethyl derivatives(halogenation before or after methylation) is shown. Relative reactivities of the different heterocyclic ring positions toward the electrophilic agent are discussed.
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