Tandem addition-cyclization reactions of 2-alkynylbenzenamines with isocyanates catalyzed by palladium chloride are described. This reaction is performed in the presence of 10 mol% of palladium chloride in THF at 80 degrees C, which provides an efficient and practical route for the synthesis of 1,2-disubstituted indoles.

The front cover picture, designed by El Kazzouli and co-workers, illustrates the site-selective C5 C7 palladium-catalyzed C-H arylations of 4-azaindazole N-oxide. 1,10-phenanthroline as ligand Pd(OAc)2 catalyst in toluene promoted activation position, while triphenyl phosphine PdCl2 DMA directed arylation at position. This new method allows synthesis C5, C7-diarylated N-oxides well C3, C7-triar...

A series of novel benzimidazolium salts (1-4) and their pyridine enhanced precatalyst preparation stabilization and initiation (PEPPSI) themed palladium N-heterocyclic carbene complexes [PdCl2(NHC)(Py)] (5-8), where NHC = 1-(N-methylphthalimide)-3-alkylbenzimidazolin-2-ylidene and Py = 3-chloropyridine, were synthesized and characterized by means of (1)H and (13)C{(1)H} NMR, UV-vis (for 5-8), E...

Reagents. β-D-(+)-glucose, ascorbic acid (AA), uric acid (UA) and p-acetamidophenol (AP) were purchased from Sigma and used as received. Porous anodic alumina (PAA) membranes with the pore sizes of 20 and 100 nm were from Whatman Corporation. The quoted pore diameters of the PAA membranes were 20 and 100 nm, but actually, according to the SEM image of the PAA membrane, there was a pore diameter...

We report on a new type of amperometric glucose biosensor that was made by integration of glucose oxidase (GOD) with palladium nanoparticles/reduce graphene oxide (Pd/RGO) nanocomposite. The Pd/RGO was prepared by a onestep reduction method in which the palladium nanoparticles and the reduced graphene oxide (RGO) were simultaneously accomplished from the reduction of dispersed solution of PdCl2...