Chemische Berichte

Halogenmethylenierungen von Carbonylverbindungen

P Entmayr, G Köbrich

Index: Entmayr,P.; Koebrich,G. Chemische Berichte, 1976 , vol. 109, p. 2175 - 2184

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Citation Number: 13

Abstract

Abstract Die Addition von Dichlormethyllithium an Carbonylverbindungen ergibt die Li- Alkoxide 2, deren Trimethylsilylierung die Silyläther 3 liefert (Tab. 1). Die Bereitschaft der CHCl 2-Gruppierung zum Wasserstoff-Metall-Austausch läßt sich zur Darstellung von Dichlorolefinen 5 ausnutzen (Tab. 2). Addiert man Dibrommethyllithium (6) an Carbonylverbindungen, so lassen sich die Li-Alkoxide 7 ebenfalls als Trimethylsilyläther 8 ...

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