Recent advances in siloxane-based aryl–aryl coupling reactions: focus on heteroaromatic systems

Diphenylphosphinite ionic liquid (IL-OPPh2): A solvent and ligand for palladium-catalyzed silylation and dehalogenation reaction of aryl halides with triethylsilane

“…Another method is the catalytic conversion of C-H bonds to C-Si bonds in the presence of transition-metal complexes [5,6]. Different research groups separately reported on the transition-metal-catalyzed coupling reaction of aryl halides with trialkoxysilanes [7][8][9][10][11]. Although, trialkylsilanes (e.g., Et 3 SiH) have not been found suitable silylating agent in some catalytic systems [12], recently, their use to attain the silylation of aryl halides under Pd and Pt catalysis have been reported [13,14].…”

Application of a dimeric ortho‐palladated complex of tribenzylamine as an efficient catalyst in microwave‐assisted Hiyama coupling reactions

“…After transmetallation reaction, intermediate 2 is obtained. Finally, reductive elimination of intermediate 2 produces the desired coupling products . Several studies in palladacycle catalyst cross‐coupling have indicated that these catalysts behave as a mere resource for producing Pd(0) species.…”

Suzuki–Miyaura and Hiyama reactions catalyzed by orthopalladated triarylphosphite complexes

“…The second group consists of dimeric complexes with orthometallated, chelating phosphito ligands forming PdeC and PdeP bonds (2). In the third group of complexes, both types of phosphito ligands are present, namely an orthometallated and an mono-coordinated one (3).…”

“…Soluble palladium compounds containing phosphorus ligands have been widely used in CeC cross-coupling reactions because of their facile synthesis and structural versatility. 16,17 In this context, palladium complexes with triphenylphosphito ligands of the type PdCl 2 [P(OR) 3 the Sonogashira 18 and methoxycarbonylation 19,20 reactions. Dimers containing an orthometallated PdeC bond, formed by a phosphito or phosphinito ligand, have been successfully tested in the Suzuki 21e23 and Heck 24 couplings.…”