Iron pentacarbonyl mediated coupling of benzyl halides to ketones under mild phase transfer conditions. |
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| Authors: | Guy Tanguy Bernd Weinberger Herve´ des Abbayes |
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| Institution: | Laboratoire de Chimie des Organome´talliques, associe´au C.N.R.S. (U.A. 415), Universite´de Rennes, Campus de Beaulieu, 35042 Rennes Cedex France |
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| Abstract: | In a two-phase system (saturated aqueous calcium hydroxide, tetrabutylamnonium sulfate, dichloromethane, iron pentacarbonyl) benzyl bromides are readily carbonylated to dibenzyl ketones; α-α′ dibromoorthoxylene yields the o-quinodimethane iron tricarbonyl complex 8. It is inferred that the reactions proceed through transient generation of the tetracarbonyl ferrate dianion. |
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