%0 Journal Article %T Carbonylative Coupling of 4,4กฏ-Diiodobiphenyl Catalyzed by Pd(NHC) Complex %A Do-Hun Lee %A Jung-Tai Hahn %A Dai-Il Jung %J Green and Sustainable Chemistry %P 15-18 %@ 2160-696X %D 2013 %I Scientific Research Publishing %R 10.4236/gsc.2013.31003 %X
To develop a luminescent material with high color purity, luminous efficiency, and stability, we synthesized diketone by carbonylative Suzuki coupling in the presence of Pd(NHC) complex as the catalyst. Carbonylative coupling of 4,4กฏ-diiodobiphenyl and phenylboronic acid was investigated to study in detail the catalytic ability of the Pd(NHC) complex. Reactions were carried out using both CO and metal carbonyls. Bis-(1,3-dihydro-1,3-dimethyl-2H-imidazol- 2-ylidene) diiodo palladium was used as the catalytic complex. Reaction products biphenyl-4,4กฏ-diylbis (phenyl- methanone) 3 and (4กฏ-iodobiphenyl-4-yl)(phenyl) methanone 4 were obtained as a result of CO insertion into the palladium(II)-aryl bond. However, when pyridine-4-yl boronic acid was used in place of phenylboronic acid as the starting reagent, synthetic reaction yielding 3 and 4 were found not to occur.
%K Carbonylative Coupling %K Metal Carbonyl %K Pd(NHC) Complex %K 4 %K 4กฏ-Diiodobiphenyl %K Phenylboronic Acid %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=28060