To further promote the widely practical application of C−H activation, developing green and mild reaction conditions has invariably been the objective of researchers, especially when it comes to remote C−H activation reactions. Herein, we report a new cheap and powerful (n-Bu) 4 NNO 3 oxidant. This oxidant is efficient and universal for Pd(II)catalyzed sp 2 and sp 3 C−H olefination and allows the reaction to be carried out at room temperature. Because of this, we attempted to make C−H functionalization more economical and environmentally benign.

Herein, we reported air stable, earth-abundant cobalt (III)-catalyzed regio-selective mono-olefination of arenes directed by urea under mild conditions through cross-dehydrogenative coupling( CDC) process . Under the optimized conditions, the high...

In the title complex, [Ir(C17H13N2)2(C5H7O2)], the IrIII atom is hexa­coordinated in a distorted octa­hedral geometry by two C,N-bidentate 2-(5-methyl-3-phenyl­pyrazin-2-yl)phenyl (mdpp) ligands and one O,O-bidentate acetyl­acetonate ligand. The dihedral angles between the phenyl rings and the pyrazine ring are 9.56 (14) and 58.99 (14)° for one mdpp ligand and 9.34 (14) and 79.94 (15)° for the other.