Liebigs Annalen der Chemie

Reationen mit Phosphinalkylenen, XXXIX. Neue Aufbaumöglichkeiten für 1??Bromacetylene und aromatische sowie konjugierte Enine

HJ Bestmann, H Frey

Index: Bestmann, Hans Juergen; Frey, Herbert Liebigs Annalen der Chemie, 1980 , # 12 p. 2061 - 2071

Full Text: HTML

Citation Number: 2

Abstract

Abstract Aus Aldehyden 1, Triphenylphosphan 2 und Tetrabrommethan 3 erhält man in guten Ausbeuten 1, 1-Dibromolefine 4. Ihre Reaktion mit 3 Mol Methylen (triphenyl) phosphoran 8 führt zu den Propargyliden (triphenyl) phosphoranen 11, die sich mit Aldehyden zu den Eninen 13 umsetzen. 13 ist auch durch Reaktion der aus 4 erhältlichen Bromacetylene 7 mit 2 Mol 8 zugänglich. Die Reaktionsfolge ermöglicht den Aufbau neuer ...

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