1.
J Org Chem
; 74(10): 4013-6, 2009 May 15.
Article
in English
| MEDLINE
| ID: mdl-19391580
ABSTRACT
A highly general, active, and stable catalytic system was realized in the palladium-catalyzed Suzuki-Miyaura reactions of sterically hindered aryl bromides with arylboronic acids using biphenylene-substituted di-tert-butylruthenocenylphosphine (R-Phos) as a supporting ligand.
2.
Org Lett
; 10(10): 2063-6, 2008 May 15.
Article
in English
| MEDLINE
| ID: mdl-18422322
ABSTRACT
High activity in the palladium-catalyzed Suzuki-Miyaura reactions of aryl chlorides with arylboronic acids was furnished using biphenylene-substituted di- tert-butylruthenocenylphosphine (R-Phos) as a supporting ligand. Substrate combinations even for the construction of highly hindered tetra- ortho-substituted biaryls can be achieved in good to excellent yields with low catalyst loadings in short reaction times.