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Facile Synthesis of 1-Substituted 4,5-Diaminopyrazoles and Its Application Toward the Synthesis of Pyrazolo[3,4-b]pyrazines.

โœ Scribed by Tun-Cheng Chien; Ronald A. Smaldone; Leroy B. Townsend


Publisher
John Wiley and Sons
Year
2004
Weight
124 KB
Volume
35
Category
Article
ISSN
0931-7597

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indolines were shown to undergo phosphorylation with phosphorus(III) halides at the two nucleophilic carbon centers to give fused 1,4-azaphosphinine ring systems. Chemical properties of the synthesized compounds were characterized. For some representative compounds, detailed NMR spectroscopic invest