Synthesis

Kumulierte Ylide XIX. 1 Acylphosphoniumylide durch kettenverlängernde Difunktionalisierung von Grignard-Verbindungen mit Ketenylidentriphenylphosphoran. …

HJ Bestmann, M Schmidt, R Schobert

Index: Bestmann, Hans Juergen; Schmidt, Martin; Schobert, Rainer Synthesis, 1988 , # 1 p. 49 - 53

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Citation Number: 26

Abstract

The reaction of Grignard compounds with ketenylidcnetriphenylphos-phorane and subsequent hydrolysis yields Z-oxoalkylidenetriphenyl-Ph0SphOTBIl€ S ‚The latter undergo Wittig reaClion, whereby tli')—x./3-unsaturated ketones are obtained. An application of this strategy to the synthesis of carbonyl homolegues o!" Lepidoptera pheromones and the queen substance is shown.