Publications de Barnali Dutta | EPFL Graph Search

Contributions to the Chemistry of the Cyclopentadienyl Complex [Cp^RuCl2](2) ("Cp-roof" = eta(5)-1-Methoxy-2,4-tert-butyl-3-neopentylcyclopentadienyl)

Kay Severin, Rosario Scopelliti, Euro Solari, Julie Risse, Barnali Dutta

The dimeric ruthenium complex Cp^RuCl2 is easily accessible in a one-pot reaction from RuCl3(solv)(n) and tert-butylacetylene. It features sterically very demanding "Cp-roof" ligands (Cp^ = eta(5)-1-methoxy-2,4-tert-butyl-3-neopentylcyclopentadienyl), ...

Wiley-Blackwell2014

RhCl3-Mediated Coupling Reactions of tert-Butyl Acetylene

Kay Severin, Rosario Scopelliti, Euro Solari, Barnali Dutta, Gregor Kiefer

RhCl3 is shown to mediate unusual coupling reactions of tert-butyl acetylene. When RhCl3(H2O)n was heated with four equivalents of tert-butyl acetylene in methanol, the dinuclear complex [{Rh(μ-Cl)(CH2tBu)(tBuC=CHCOCH2tBu)}2] (2) was isolated. A larger exc ...

Wiley-Blackwell2012

Reactions of Alkynes with [RuCl(cyclopentadienyl)] Complexes: The Important First Steps

Kay Severin, Rosario Scopelliti, Euro Solari, Ursula Röthlisberger, Basile Curchod, Barnali Dutta, Pablo Campomanes Ramos

Cyclopentadienyl-ruthenium half-sandwich complexes with 2-bound alkyne ligands have been suggested as catalytic intermediates in the early stages of Ru-catalyzed reactions with alkynes. We show that electronically unsaturated complexes of the formula [RuCl ...

2010

Novel Ruthenium Complexes with Sterically Demanding Cyclopentadienyl Ligands : Syntheses, Reactivity and Catalytic Applications

Barnali Dutta

Investigations of ruthenium halfsandwich complexes have mostly focused on Cp and Cp* based derivatives due to the availability of easily accessible starting materials. However, it is interesting to have complexes with substituted cyclopentadienyl ligands i ...

EPFL2010

Importance of the p-Ligand: Remarkable Effect of the Cyclopentadienyl Ring on the Cytotoxicity of Ruthenium PTA Compounds

Kay Severin, Rosario Scopelliti, Paul Joseph Dyson, Claudine Scolaro, Barnali Dutta

The water-sol. complexes [(Cp'OR)RuCl(PTA)2] (Cp'OR = h5-1-alkoxy-2,4-di-tert-butyl-3-neopentylcyclopentadienyl; R = Me, Et; PTA = 1,3,5-triaza-7-phosphaadamantane) are considerably more cytotoxic (.apprx.2 orders of magnitude) than the cyclopentadienyl an ...

2008

Synthesis, Structure, and Reactivity of the Methoxy-Bridged Dimer [Cp^Ru(mu-OMe)]2 (Cp^ = 1-Methoxy-2,4-di-ter-butyl-3-neopentylcyclopentadienyl)

Kay Severin, Rosario Scopelliti, Barnali Dutta

2008

Ruthenium Half-Sandwich Complexes with Sterically Demanding Cyclopentadienyl Ligands

Kay Severin, Rosario Scopelliti, Euro Solari, Sébastien Gauthier, Barnali Dutta

2007

A New Coupling Reaction for the Synthesis of Ruthenium Halfsandwich Complexes with Sterically Demanding Cyclopentadienyl Ligands

Kay Severin, Rosario Scopelliti, Euro Solari, Sébastien Gauthier, Barnali Dutta

Royal Society of Chemistry2007