Cationic Group-IV pincer-type complexes for polymerization and hydroamination catalysis

Recent Advances in Chemistry of Unsymmetrical Phosphorus-Based Pincer Nickel Complexes: From Design to Catalytic Applications

Pincer complexes play an important role in organometallic chemistry; in particular, their use as homogeneous catalysts for organic transformations has increased dramatically in recent years. The high catalytic activity of such bis-cyclometallic complexes is associated with the easy tunability of their properties. Moreover, the phosphorus-based unsymmetrical pincers showed higher catalytic activity than the corresponding symmetrical analogues in several catalytic reactions. However, in modern literature, an increasing interest in the development of catalysts based on non-precious metals is observed. For example, nickel, which is an affordable and sustainable analogue of platinum and palladium, known for its low toxicity, has attracted increasing attention in the catalytic chemistry of transition metals in recent years. Thus, this mini-review is devoted to the recent advances in the chemistry of unsymmetrical phosphorus-based pincer nickel complexes, including the ligand design, the synthesis of nickel complexes and their catalytic applications.

Hydrogen elimination reactivity of ruthenium pincer hydride complexes: a DFT study

The pincer effect is explained for various pincer hydride complexes, differing in the donor atoms, using activation barriers, and MESP parameters.

Novel yttrium and zirconium catalysts featuring reduced Ar-BIANH2 ligands for olefin hydroamination (Ar-BIANH2 = bis-arylaminoacenaphthylene)

Even demanding aminoalkenes can be cyclized by Ar-BIANH₂ yttrium complexes; a related zirconium complex has been crystallographically characterized.

Cyclopentadienyl-based Mg complexes in the intramolecular hydroamination of aminoalkenes: mechanistic evidence for cationic versus neutral magnesium derivatives

Mechanistic evidence in the catalytic hydroamination of aminoalkenes for a cationic magnesium derivative.

Synthesis and application of PNP pincer ligands in rhodium-catalyzed hydroformylation of cycloolefins

New phosphorus ligands were successfully developed for rhodium-catalyzed hydroformylation of cycloolefins and exerted high aldehyde selectivity for cycloolefins.

Intramolecular hydroamination reactions catalyzed by zirconium complexes bearing bridged bis(phenolato) ligands

Cationic species derived from zirconium complexes stabilized by bridged bis(phenolato) ligands showed good activities in catalyzing intramolecular hydroamination/cyclization of primary and secondary amines.