期刊
JOURNAL OF HETEROCYCLIC CHEMISTRY
卷 38, 期 5, 页码 1227-1230出版社
WILEY-BLACKWELL
DOI: 10.1002/jhet.5570380533
关键词
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A novel synthesis of the title compound was achieved by direct amination using Vicarious Nucleophilic Substitution (VNS) methodology. Reaction of 1,1,1-trimethylhydrazinium iodide with 3,5-dinitropyrazole in DMSO produces 4-amino-3,5-dinitro-1H-pyrazole as a 1:1 crystal solvate with DMSO. Recrystallization from water yields the monohydrated crystal. Recrystallization of the monohydrate from butyl acetate yields the compound in pure form.
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