Organic Chemistry Portal



1,1'-Methylene-3,3'-bis[(N-(tert-butyl)imidazol-2-ylidene] and Its Effect in Palladium-Catalyzed C-C Coupling

Shirin Nadri, Ezzat Rafiee, Sirous Jamali, Mohammad Joshaghani*

*Faculty of Chemistry, Razi University, Kermanshah 67149, Iran, Email:

S. Nadri, E. Rafiee, S. Jamali, M. Joshaghani, Synlett, 2015, 26, 619-624.

DOI: 10.1055/s-0034-1379954

see article for more reactions


A catalytic system utilizing a chelate carbene ligand containing bulk tert-butyl groups has been used for palladium-catalyzed Heck and Suzuki coupling reactions. The catalyst system performs well with low loadings of Pd(OAc)2. Heck reactions with monosubstituted olefins provide the trans-configured products, while 1,1-disubstituted olefins favor the terminal product.

see article for more examples

Key Words

palladium, carbene Ligand, C-C coupling, Heck reaction, Suzuki reaction

ID: J60-Y2015