PHOSPHO-4-PYRAZOLES. SYNTHESE ET ETUDE SPECTROGRAPHIQUE RMN 1H, 31P ET 13C

PHOSPHO-4-PYRAZOLES. SYNTHESE ET ETUDE SPECTROGRAPHIQUE RMN 1H, 31P ET 13C

4-Phosphopyrazoles are prepared with good yield by cyclisation of hydrazone phosphorus compounds and ethylortho formiate. The effects of substitution are investigated on the 13 C chemical shifts of pyrazole ring. The magnitude of the coupling constant 1 J pc is in good agreement with the hybridizati...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Phosphorus and sulfur and the related elements 1988-10, Vol.40 (1-2), p.63-68
Hauptverfasser: Akacha, Azaïez Ben, Ayed, Naceur, Baccar, Belgacem, Charrier, Claude
Format: Artikel
Sprache:eng
Schlagworte:
hydrazone
hétérocycle
Phosphore
pyrazole
RMN
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:4-Phosphopyrazoles are prepared with good yield by cyclisation of hydrazone phosphorus compounds and ethylortho formiate. The effects of substitution are investigated on the 13 C chemical shifts of pyrazole ring. The magnitude of the coupling constant 1 J pc is in good agreement with the hybridization of the phosphorus atom.
ISSN:0308-664X
DOI:10.1080/03086648808072894