Catalytic activity and facile recovery of a cyclometalated N-heterocyclic carbene palladium(II) complex immobilized by non-covalent interactions on reduced graphene oxide was written by Karami, Kazem;Ramezanpour, Azar;Zakariazadeh, Mostafa;Silvestru, Cristian. And the article was included in Applied Organometallic Chemistry in 2019.Category: bromides-buliding-blocks The following contents are mentioned in the article:
The growing concern about the potentially adverse effects of the production of chem. compounds on the sustainable development of the environment has led to a great deal of efforts to search for low-cost and environmentally friendly catalytic systems. A pyrene-tagged N-heterocyclic carbene palladacycle complex ([Pd{(C,N)C6H4CH2NH(Et)}(Imd-P)Br]) was prepared by reacting imidazolium salt with dimer ([Pd2{(C,N)C6H4CH2NH(Et)}2(μ-OAc)2]). Then, it was immobilized onto the surface of reduced graphene oxide (rGO) via π-π stacking forces. The hybrid compound ((NHC)Pd-rGO) was made in a one-step process. Various techniques were employed to characterize the compound In addition, computational studies were used to verify the interaction between the Pd complex and rGO. The catalytic activity of the mol. complex and hybrid material was evaluated in both Suzuki-Miyaura cross-coupling reactions and reduction of p-nitrophenol to p-aminophenol. The catalytic activity of the hybrid material was enhanced in comparison with the corresponding homogeneous analog. Thus, rGO seems to play a significant role in catalytic activity. Hot filtration experiments show the heterogeneous nature of the catalyst resulting from the strong interaction between pyrene and graphene. The hybrid (NHC)Pd-rGO material could be recycled up to six times with no decrease in catalytic activity. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Category: bromides-buliding-blocks).
2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.Category: bromides-buliding-blocks
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary