15994-89-5Relevant articles and documents
Cyclometallated compounds of manganese(I) with 1-methylphenylimidazoles
Suarez, Antonio,Vila, Jose Manuel,Pereira, Maria Teresa,Gayoso, Eduardo,Gayoso, Miguel
, p. 359 - 364 (1987)
Cyclometallated complexes of manganese(1) with 1-methylphenylimidazoles have been prepared.IR and 1H NMR spectroscopic studies show they are octahedral complexes in which the imidazole ligand is bound to the metal through the nitrogen and phenyl C(6) atom
Nano CuO-catalyzed C-H functionalization of 1,3-azoles with bromoarenes and bromoalkenes
Zhang, Wu,Tian, Yujie,Zhao, Na,Wang, Yuanyuan,Li, Jia,Wang, Zhenghua
, p. 6120 - 6126 (2015/03/30)
Copper oxide catalyzed direct C-H arylation and alkenylation of aromatic heterocycles using aryl and alkenyl bromides have been developed and have been applied to the C-H functionalization of a variety of 1,3-azoles like benzoxazole, benzothiazole, 1-methylbenzimidazole, and 1-methylimidazole, with moderate to excellent yields. The best performance has been achieved in the presence of PPh3 when average size of CuO nanoparticles is 6.5 nm. This catalyst can be recovered and reused without significant decrease in its catalytic activity.
Direct C5-arylation reaction between imidazoles and aryl chlorides catalyzed by palladium complexes with phosphines and N-heterocyclic carbenes
Kumar, P. Vijaya,Lin, Wu-Shien,Shen, Jiun-Shian,Nandi, Debkumar,Lee, Hon Man
experimental part, p. 5160 - 5169 (2011/11/14)
Palladium(II) acetate complexes bearing phosphines and carbene ligands, Pd(L)(PR3)(OAc)2 (1a, R = Ph; 1b, R = Cy; L = 1,3-dibenzylimidazol-2-ylidene), were prepared by salt metathesis reactions of their chloro complexes with AgOAc in good yields. The electron-rich 1b was efficient in catalyzing C-5 direct arylation of imidazoles with aryl halides. Most significantly, the catalytic system allows a range of aryl chlorides as substrates. Microwave irradiation effectively promotes the reactions, with good yields obtainable in only 2 h. In combination with the classical method of C-C bond formation reactions, novel imidazole derivatives featuring biaryl and styryl subunits were successfully obtained from 1,4-dichlorobenzene and 1-bromo-4-chlorobenzene.