New access to (η5-cyclohexadienyl)Mn(CO)3 and cationic (η6-arene)Mn(CO)3 complexes by Suzuki–Miyaura reaction
作者:Françoise Rose-Munch、Alex Marti、Derya Cetiner、Jean-Philippe Tranchier、Eric Rose
DOI:10.1039/c0dt01270j
日期:——
First Suzuki–Miyaura coupling reactions applied to (η5-chloro-cyclohexadienyl)Mn(CO)3 complexes are described and lead to the syntheses of (η5-aryl-cyclohexadienyl)Mn(CO)3 and of cationic (η6-arene)Mn(CO)3 complexes after rearomatization. The structures of two of the newcomplexes have been investigated by X-ray diffraction study.
Selective Access to Electron Donating Group Substituted (η<sup>5</sup>-cyclohexadienyl)Mn(CO)<sub>3</sub> Complexes by Bimetallic Manganese−Palladium Activation
Unprecedented (η5-cyclohexadienyl)Mn(CO)3complexes bearing an electron-donating group at the end of the π system have been selectively prepared using Pd catalysis and primary, secondary cyclic, and acyclic amines. This catalytic methodology has been extended to O-, S-, and P-based derivatives. The X-ray structure of one coupling product exhibits an unusual conformation in its η5 system.
η<sup>6</sup>-(Arene)tricarbonylchromium and Manganese Complexes Linked to 2‘-Deoxyuridine
作者:Mélanie Etheve-Quelquejeu、Jean-Philippe Tranchier、Françoise Rose-Munch、Eric Rose、Lieve Naesens、Erik De Clercq
DOI:10.1021/om700674v
日期:2007.11.1
Synthesis of η6-(arene)tricarbonylchromium and manganese complexes linked to 2‘-deoxyuridine via a triple-bond spacer is reported using palladium-catalyzed reactions of alkynes with halogeno derivatives, and their antiviral activity in cell-based assays studied.
Phosphino-substituted (η5-cyclohexadienyl)tricarbonylmanganese complexes: synthesis and structure
作者:Françoise Rose-Munch、Derya Cetiner、Murielle Chavarot-Kerlidou、Eric Rose
DOI:10.1039/c1nj20152b
日期:——
The synthesis of phosphino derivatives built on a (η5-cyclohexadienyl)Mn(CO)3 scaffold is efficiently performed using either a lithiation/electrophile quench sequence or a Pd-catalyzed coupling reaction. The structure of one of them was established by X-ray analysis.
Synthesis and Structure of (η<sup>5</sup>-cyclohexadienyl)Mn(CO)<sub>3</sub> and Cationic (η<sup>6</sup>-arene)Mn(CO)<sub>3</sub> Complexes Comprising a Double Bond Conjugated to the π System
Addition of a Grignard reagent to keto-substituted (eta(5)-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 (eta(5)-cyclohexadienyl)Mn(CO)(3) complexes substituted by a double bond conjugated to the pi system as the major compounds, along with uncoordinated trienones due to the rearrangement of the intermediate carbocation. The structure of one of these eta(5) complexes has been determined by X-ray crystallography as well as one of the corresponding cationic (eta(6)-arene)Mn(CO)(3) complexes formed upon hydride abstraction.