Linked Life Data

18043820

Source:http://linkedlifedata.com/resource/pubmed/id/18043820

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
47
pubmed:dateCreated
2007-11-28
pubmed:abstractText
A new family of functionalized ligands derived from norborn-5-ene-2,3-dicarboxylic anhydride has been used in Suzuki C-C cross-couplings between aryl boronic acids and aryl bromide derivatives in [BMI][PF(6)] (BMI=1-n-butyl-3-methyl-imidazolium), using palladium acetate as catalytic precursor. High conversions and yields are obtained when amine ligands containing hydroxy groups are involved. TEM analyses after catalysis show the formation of small nanoparticles, in contrast to the agglomerates observed when nanoparticles are intentionally preformed, with a consequent decrease in the catalytic activity in the latter case. Some tests, including the correlation effect between solvent and ligand, are carried out to try to identify the true nature of the catalyst. All the results obtained suggest that formation of nanoparticles is required to lead to a catalytically active system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1477-9226
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5572-81
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Palladium catalyzed Suzuki C-C couplings in an ionic liquid: nanoparticles responsible for the catalytic activity.
pubmed:affiliation
Laboratoire Hétérochimie Fondamentale et Appliquée UMR CNRS 5069, Univesité Paul Sabatier, 118 route de Narbonne, 31062, Toulouse cedex 9, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't