1332705-29-9Relevant academic research and scientific papers
A cyclobutene-1,2-bis(imidazolium) salt as preligand for palladium-catalyzed cross-coupling reactions: Properties and applications
Rahimi, Alireza,Papai, Imre,Madarasz, Udam,Gjikaj, Mimoza,Namyslo, Jan C.,Schmidt, Andreas
scheme or table, p. 754 - 763 (2012/03/12)
Spectroscopic investigations and the results of calculations on the title bis-imidazolium salt, its mono-and bis-carbenes, and its interactions with palladium are presented. In addition, we report on the scope and limitations of metal-catalyzed cross-coupling reactions performed with the title bis-imidazolium salt. The salt proved to be an efficient ligand precursor in room-temperature Suzuki-Miyaura reactions, C-C couplings with sterically extremely hindered biaryls,selective thiophene arylations, and couplings with vinylic chlorides. Spectroscopic investigations and the results of calculations on the title bis-imidazolium salt, its mono-and bis-carbenes, and its interactions with palladium are presented. In addition, we report on the scope and limitations of metal-catalyzed cross-coupling reactions performed with the title bis-imidazolium salt. Copyright
Selective mono- to perarylations of tetrabromothiophene by a cyclobutene-1,2-diylbisimidazolium preligand
Rahimi, Alireza,Namyslo, Jan C.,Drafz, Martin H. H.,Halm, Julian,Huebner, Eike,Nieger, Martin,Rautzenberg, Nicola,Schmidt, Andreas
, p. 7316 - 7325 (2011/11/05)
(Cyclobut-1-ene-1,2-diyl)bis(1-methylimidazolium)tetrafluoroborate is applied as preligand in palladium-catalyzed cross-coupling reactions starting from tetrabromothiophene for the synthesis of mono-, bi-, tri-, and tetraaryl-substituted thiophenes bearin
