Chemistry, Ames Laboratory
Journal or Book Title
Journal of the American Chemical Society
Bulk gold metal powder, consisting of particles (5−50 μm) much larger than nanoparticles, catalyzes the coupling of carbenes generated from diazoalkanes (R2C═N2) and 3,3-diphenylcyclopropene (DPCP) to form olefins. It also catalyzes cyclopropanation reactions of these carbene precursors with styrenes. The catalytic activity of the gold powder depends on the nature of the gold particles, as determined by TEM and SEM studies. The reactions can be understood in terms of mechanisms that involve the generation of carbene R2C: intermediates adsorbed on the gold surface.
American Chemical Society
Zhou, Yibo; Trewyn, Brian G.; Angelici, Robert J.; and Woo, L. Keith, "Catalytic Reactions of Carbene Precursors on Bulk Gold Metal" (2009). Ames Laboratory Publications. 360.