Arene complexes of transition metals in reactions with nucleophilic reagents: XXX. Reaction of π-halomesitylene [Tetramethyl (ethyl) cyclopentadienyl] rhodium (II) …

…, NM Romanova, GS Zhilovskii, VD Shteingarts

Index: Goryunov; Romanova; Zhilovskii; Shteingarts Russian Journal of Organic Chemistry, 2007 , vol. 43, # 12 p. 1765 - 1772

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Abstract

Abstract Reactions of fluoro-and chloromesitylene π-complexes [(η 6-1-Hlg-2, 4, 6-Me 3 C 6 H 2)(η 5-C 5 EtMe 4) Rh]-(BF 4) 2 (Hlg= F, Cl) with diethyl malonate anion in THF or acetone- d 6 at 20° C initially (within the first 5–30 min) involve nucleophile addition at unsubstituted carbon atom in the arene ligand with formation of π-cyclohexadienyl complexes {[η 5-1- (EtOCO) 2 CH-1-H-3-Hlg-2, 4, 6-Me 3 C 6 H 2](η 5-C 5 EtMe 4) Rh}(BF 4). The ...