0000000001310334
AUTHOR
Ghenwa Bouhadir
Planar-Chiral 1,1 '-Diboryl Metallocenes: Diastereoselective Synthesis from Boryl Cyclopentadienides and Spin Density Analysis of a Diborylcobaltocene
International audience; The reaction of nonsubstituted alkali metal cyclopentadienides with haloboranes leads to similar to 90:10 mixtures of isomeric diene products that can be deprotonated to give simple boryl cyclopentadienides. We extended this transformation to the sterically hindered lithium tert-butylcyclopentadienide 1 using FBMe(s)2 (Mes = 2,4,6-trimethylphenyl) and ClBCy2 as electrophiles. The boryl group is selectively introduced in the remote position to minimize steric congestion. The new boryl dienes are obtained as mixtures of isomers, and subsequent deprotonation with MeLi or LiHMDS affords the lithium 1,3-disubstituted cyclopentadienides Sa,b in yields over 95%. Direct asse…
A sterically congested 1,2-diphosphino-1'-boryl-ferrocene: synthesis, characterization and coordination to platinum.
International audience; A new class of tritopic ferrocene-based ambiphilic compound has been prepared by assembling diphosphino- and boryl-substituted cyclopentadienides at iron. The presence of five sterically demanding substituents on the ferrocene platform induces conformation constraints, as apparent from XRD and NMR data, but does not prevent chelating coordination to platinum. The Lewis acid moiety is pendant in both the free ligand and the platinum complex.
CCDC 1474154: Experimental Crystal Structure Determination
Related Article: Emmanuel Lerayer, Patrice Renaut, Stéphane Brandès, Hélène Cattey, Paul Fleurat-Lessard, Ghenwa Bouhadir, Didier Bourissou, and Jean-Cyrille Hierso|2017|Inorg.Chem.|56|1966|doi:10.1021/acs.inorgchem.6b02510
CCDC 1902394: Experimental Crystal Structure Determination
Related Article: Emmanuel Lerayer, Patrice Renaut, Julien Roger, Nadine Pirio, Hélène Cattey, Paul Fleurat-Lessard, Maxime Boudjelel, Stéphane Massou, Ghenwa Bouhadir, Didier Bourissou, Jean-Cyrille Hierso|2019|Dalton Trans.|48|11191|doi:10.1039/C9DT01921A
CCDC 1902395: Experimental Crystal Structure Determination
Related Article: Emmanuel Lerayer, Patrice Renaut, Julien Roger, Nadine Pirio, Hélène Cattey, Paul Fleurat-Lessard, Maxime Boudjelel, Stéphane Massou, Ghenwa Bouhadir, Didier Bourissou, Jean-Cyrille Hierso|2019|Dalton Trans.|48|11191|doi:10.1039/C9DT01921A
CCDC 1474155: Experimental Crystal Structure Determination
Related Article: Emmanuel Lerayer, Patrice Renaut, Stéphane Brandès, Hélène Cattey, Paul Fleurat-Lessard, Ghenwa Bouhadir, Didier Bourissou, and Jean-Cyrille Hierso|2017|Inorg.Chem.|56|1966|doi:10.1021/acs.inorgchem.6b02510