Publications (4)7.68 Total impact
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Article: New access to (η(5)-cyclohexadienyl)Mn(CO)3 and cationic (η(6)-arene)Mn(CO)3 complexes by Suzuki-Miyaura reaction.
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ABSTRACT: First Suzuki-Miyaura coupling reactions applied to (η(5)-chloro-cyclohexadienyl)Mn(CO)3 complexes are described and lead to the syntheses of (η(5)-aryl-cyclohexadienyl)Mn(CO)3 and of cationic (η(6)-arene)Mn(CO)3 complexes after rearomatization. The structures of two of the new complexes have been investigated by X-ray diffraction study.Dalton Transactions 02/2011; 40(7):1567-75. · 3.84 Impact Factor -
Article: Synthesis and Reactivity of (η5-Hydroxyalkylcyclohexadienyl)Mn(CO)3 Complexes
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ABSTRACT: (η5-1-Hydroxyalkylcyclohexadienyl)tricarbonylmanganese complexes 3a and 3b have been prepared, and their rearomatization delivered compounds 5 and 6, the first benzylic alcohol derivatives coordinated to the cationic Mn(CO)3 tripod. The structure of 5 has been determined by X-ray crystallography. 1-Hydroxyalkyl 3a, 7, 8, 2-hydroxyalkyl 19, 20, and 3-hydroxyalkyl 25, 26 (η5-cyclohexadienyl)tricarbonylmanganese complexes have been synthesized and studied toward trifluoroacetylation of the hydroxy group when submitted to the action of NEt3 and (CF3CO)2O. Only the 2-hydroxyalkyl-substituted complexes eclipsed by a Mn−CO bond of the Mn(CO)3 tripod gave the expected trifluoroacetate derivatives 21 and 22. For the 1-hydroxyalkyl-substituted complexes, elimination of the trifluoroacetoxy group took place followed by decoordination of the Mn(CO)3 moiety and trifluoroacetylation, giving rise to trifluoromethyltrienones 10, 11, and 12, whose stuctures were established by X-ray analysis. For 3-hydroxyalkyl-substituted complexes, elimination of the trifluoroacetoxy group also occurred, yielding free arenes 27 and 28 by decoordination of the Mn(CO)3 entity.03/2010; -
Article: First example of an enantiopure planar chiral ligand built on a (eta5-cyclohexadienyl)Mn(CO)3 scaffold.
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ABSTRACT: The synthesis of (eta5-cyclohexadienyl)Mn(CO)3-based planar chiral ligands is realized by an efficient lithiation/electrophilic quench procedure, and the coordinating properties of one of them are highlighted together with its optical resolution.Dalton Transactions 02/2009; · 3.84 Impact Factor -
Article: Synthesis and Structure of (η5-cyclohexadienyl)Mn(CO)3 and Cationic (η6-arene)Mn(CO)3 Complexes Comprising a Double Bond Conjugated to the π System
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ABSTRACT: Addition of a Grignard reagent to keto-substituted (η5-cyclohexadienyl)Mn(CO)3 complexes leads to the corresponding alcohols in very good yields. After acidic treatment, dehydration occurs, which gives rise to the formation of unprecedented (η5-cyclohexadienyl)Mn(CO)3 complexes substituted by a double bond conjugated to the π system as the major compounds, along with uncoordinated trienones due to the rearrangement of the intermediate carbocation. The structure of one of these η5 complexes has been determined by X-ray crystallography as well as one of the corresponding cationic (η6-arene)Mn(CO)3 complexes formed upon hydride abstraction.01/2008;
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Institutions
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2009
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Polytech Paris-UPMC
Paris, Ile-de-France, France
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