Liebigs Annalen der Chemie

Azolide, 7 Phosphonat??und Phosphatgruppen??Übertragung mit Pyrazoliden

M Regitz, R Martin

Index: Regitz, Manfred; Martin, Roland Liebigs Annalen der Chemie, 1984 , # 10 p. 1641 - 1652

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Abstract

Abstract Die tert-Butylammonium-α-diazophosphinate 7 addieren sich an akzeptorsubstituierte Acetylene 8 unter Bildung von N-Phosphorylpyrazolen: Primär gebildete 3H-Pyrazole 9 gehen spontane sigmatrope [1, 5]-Verschiebung der anionischen PO-Gruppe zu 10 ein. α-Diazophosphonate des gleichen Typs (12) reagieren zunächst ebenfalls unter [3+ 2]-Cycloaddition mit 8, doch führt die nachfolgende Umlagerung ...

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