0000000001310334

AUTHOR

Ghenwa Bouhadir

showing 6 related works from this author

Planar-Chiral 1,1 '-Diboryl Metallocenes: Diastereoselective Synthesis from Boryl Cyclopentadienides and Spin Density Analysis of a Diborylcobaltocene

2017

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…

Steric effectselectronDienechemistry.chemical_elementanion recognition[CHIM.INOR]Chemical Sciences/Inorganic chemistry010402 general chemistryPhotochemistryligand01 natural sciencesMedicinal chemistryInorganic Chemistrychemistry.chemical_compoundDeprotonationredox chemistryCobaltocenePhysical and Theoretical ChemistryConformational isomerismbidentate lewis-acids010405 organic chemistryChemistryDiastereomercrystal-structure[ CHIM.INOR ] Chemical Sciences/Inorganic chemistry0104 chemical sciencessubstituted ferrocenesElectrophileLithiumactivationolefin polymerizationboron
researchProduct

A sterically congested 1,2-diphosphino-1'-boryl-ferrocene: synthesis, characterization and coordination to platinum.

2019

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.

Steric effects010405 organic chemistryChemistryLigandchemistry.chemical_element010402 general chemistry01 natural sciencesNmr data3. Good health0104 chemical sciencesInorganic Chemistrychemistry.chemical_compoundFerrocenePolymer chemistry[CHIM]Chemical SciencesMoietyChelationLewis acids and basesPlatinumDalton transactions (Cambridge, England : 2003)
researchProduct

CCDC 1474154: Experimental Crystal Structure Determination

2017

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

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters11'-di-t-butyl-33'-bis(dimesitylboryl)ferrocene n-hexane solvateExperimental 3D Coordinates
researchProduct

CCDC 1902394: Experimental Crystal Structure Determination

2019

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

Space GroupCrystallographyCrystal System12-bis(diphenylphosphino)-1'-(dimesitylboryl)-3'4-di-t-butylferroceneCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1902395: Experimental Crystal Structure Determination

2019

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

Space GroupCrystallography(mu-4-t-butyl-12-bis(diphenylphosphanyl)cyclopenta-24-dien-1-yl)-(2-[bis(246-trimethylphenyl)boranyl]-4-t-butylcyclopenta-24-dien-1-yl)-bis(chloro)-platinum(ii)-iron dichloromethane solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 1474155: Experimental Crystal Structure Determination

2017

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

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(4-t-butylcyclopenta-13-dien-1-yl)(dimesityl)boraneExperimental 3D Coordinates
researchProduct