17250-59-8

Basic information

• Product Name: HIr(PPh₃)2(CO)2
• Synonyms: HIr(PPh₃)2(CO)2
• CAS NO: 17250-59-8
• Molecular Weight: 773.83
• Mol File: 17250-59-8.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: HIr(PPh₃)2(CO)2(CAS DataBase Reference)
• NIST Chemistry Reference: HIr(PPh₃)2(CO)2(17250-59-8)
• EPA Substance Registry System: HIr(PPh₃)2(CO)2(17250-59-8)

Safety Data

• Hazardous Substances Data: 17250-59-8(Hazardous Substances Data)

Upstream product

• 15318-31-7 bis(triphenylphosphine)iridium(I) carbonyl chloride 
• 203629-37-2 (P(C₆H₅)3)2(CO)Ir(H)2(NC₄H₄) 
• 201230-82-2 carbon monoxide 
• 603-35-0 triphenylphosphine 
• 50520-11-1 tricarbonylbis(triphenylphosphine)iridium hexafluorophosphate 
• 94070-38-9 trans-MeOIr(CO)(PPh₃)2 
• 75-07-0 acetaldehyde 
• 99688-37-6 trans-i-PrOIr(CO)(PPh₃)2 
• 94070-39-0 trans-n-PrOIr(CO)(PPh₃)2 
• 98720-65-1 trans-t-BuOIr(CO)(PPh₃)2 

Downstream Products

• 16971-53-2 mer,trans-IrH₃(CO)(PPh₃)2 
• 16971-53-2 fac-{IrH₃(PPh₃)2(CO)} 
• 207409-67-4 fac-cis-IrH₃(CO)2(PPh₃) 
• 83111-59-5 IrH₂(CO)2[P(C₆H₅)3]2⁽¹⁺⁾*BF₄^(1-)=IrH₂(CO)2[P(C₆H₅)3]2BF₄ 
• 63731-67-9 IrF(CO)[P(C₆H₅)3]2(NHNC₆H₃CF₃)⁽¹⁺⁾*BF₄^(1-)=IrF(CO)[P(C₆H₅)3]2(NHNC₆H₃CF₃)BF₄ 
• 94524-78-4 1,1,2,2,2,3,3,3,4,4,4-undecacarbonyl-1,2;2,3;3,4-tri-μ-hydrido-1-triphenylphosphineiridiumtriosmium(3 Ir-Os, 3 Os-Os) 

Relevant articles and documents

Oxidative addition and reductive elimination reactions of trans-[Ir(PPh3)2(CO)(NC4H4)] and trans,cis-[Ir(PPh3)2(H)2(CO)(NC 4H4)], including N-H bond-forming reductive elimination of pyrrole

The complex trans-(PPh3)2(CO)Ir(NC4H4) (1) has been synthesized and is an analogue of metal-aryl complexes, but with a nitrogen of the heteroaromatic group covalently bonded to the transition metal. Compound 1 readily undergoes initial reaction with a variety of substrates at the metal center rather than at the pyrrolyl nitrogen, allowing for the study of reactions between the pyrrolyl group and accompanying covalent ligands. These reactions ultimately produce N-substituted pyrroles, X-NC4H4 (X = C(O)CH3, C(O)C6H4CH3, H, SnMe3, SiMe3, SiEt3, Bcat). Compound 1 undergoes oxidative addition of H2 to form the stable Ir-(III) product (PPh3)2(CO)Ir(H)2(NC4H4) (2). When pure 2 is heated, it undergoes simple elimination of H2 to regenerate 1; however, if 2 is heated for longer times under H2 in the presence of PPh3, it undergoes reductive elimination of pyrrole and forms (PPh3)3(CO)Ir(H). Qualitative analysis of the mechanism of this reaction suggests that it occurs by either direct reductive elimination from the octahedral complex or rate-determining ligand dissociation, followed by rapid reductive elimination of pyrrole. Reductive elimination of pyrrole from 2 was also observed to occur photochemically by initial irreversible dissociation of a dative ligand.

Evidence for C-O bond formation, aldehyde decarbonylation, and dimerization by reaction of formaldehyde and acetaldehyde with trans-ROIr(CO)(PPh3)2

The reaction of formaldehyde and acetaldehyde with trans-ROIr(CO)(PPh3)2 (R = Me, i-Pr, n-Pr, t-Bu) leads to formation of esters ROC(O)R′ (R′ = H or Me) by formation of a carbon-oxygen bond between the alkoxide and the acyl from the aldehyde and to catalytic production of the ester R′CH2C(O)OR′ in a Tischenko reaction.

Syntheses of klnetlcalvy unstable neutral formyl complexes via Li(C2H5)3BH and transformylatlonn reactions of metal carbonyl cations

Low-temperature syntheses of the kinetically unstable formyls by reaction of with the metal carbonyl cations are described.