195052-56-3

Upstream product

• 3981-83-7 titanium(IV) trichloride isopropoxide 
• 945657-54-5 4,4'-bis[P-(2,6-bis((dimethylamino)methyl)phenylgold(I))diphenylphosphino]biphenyl toluene solvate 
• 474888-54-5 [Au(C₆H₃(CH₂NMe₂)2-2,6)(triphenylphosphine)] 

Relevant academic research and scientific papers

A new, easily recyclable arylating agent based on a diphosphino-digold(I) complex

The synthesis of two organogold(i) complexes, [(Au(NCN)) 2(dppbp)] (6) and [(Au(Phebox))2(dppbp)] (9), and their application in subsequent transmetalating reactions are described. A trinuclear organogold(i) complex, [(AuCl)3(tdpppb)] (4) is also reported, which exhibits a surprisingly high solubility in dichloromethane. It was found that 6 and 9 can cleanly transfer the anionic NCN-([C6H3(CH 2NMe2)2-2,6]-) or Phebox-([2,6-bis(oxazolinyl)phenyl]-) moiety to TiIV and PdII centers, respectively. The coproduct [(AuCl)2(dppbp)] (3, dppbp is [4-Ph2PC6H4]2 (1)) formed during this transmetalation reaction, precipitates almost quantitatively from the reaction mixture (toluene) and can thus be separated by simple filtration. In comparison, [AuCl(PPh3)], formed as the coproduct in the transmetalation reaction of [Au(NCN)(PPh3)] with metal salts, has a higher solubility in apolar solvents and thus is more difficult to separate from the resultant organometallic complex. Digold complex 6 has been characterized by NMR spectroscopy and crystallographic analyses. These analyses show that the two gold units are essentially independent. The formation of a dimetallic transmetalating agent based on gold(i) had no effect on its transmetalating properties. The Royal Society of Chemistry 2007.

A bis(ortho-amine)aryl-gold(I) compound as an efficient, nontoxic, arylating reagent

A novel strategy for the synthesis of bis(ortho-amine)chelated monoanionic bisaminoaryl-metal complexes is presented. This method constitutes the exchange of a monoanionic, NCN-pincer ligand (NCN = [C6H3(CH2NMe2)2-2,6] -) between a stable arylgold(I) phosphine, [Au(η1-C-NCN)(PPh3)] (2), and a transition metal halide. This transmetalation results in the quantitative formation of[M(NCN)] organometallic compounds (M = AuIII, NiII, PdII, PtII, TiIV, and FeIII) and [AuCl(PPh3)] as the only coproduct that can be recovered.