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Volumn 55, Issue 50, 1999, Pages 14451-14458

A regioselective synthesis of 5-pyrazolones and pyrazoles from phosphazenes derived from hydrazines and acetylenic esters

Author keywords

5 Pyrazolones; Acetylenic esters; Hydrazines; Phosphazenes; Pyrazoles

Indexed keywords

ESTER DERIVATIVE; HYDRAZINE DERIVATIVE; PYRAZOLE DERIVATIVE; PYRAZOLONE DERIVATIVE;

EID: 0033544757     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4020(99)00890-X     Document Type: Article
Times cited : (40)

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    • Phosphazene 1 was prepared as Ref. 16 in THF, the solvent was evaporated under inert atmosphere without isolation, acetonitrile was then added and the solution was used "in situ" for the next step
    • Phosphazene 1 was prepared as Ref. 16 in THF, the solvent was evaporated under inert atmosphere without isolation, acetonitrile was then added and the solution was used "in situ" for the next step.


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