671789-64-3

Upstream product

• 12112-67-3 bis(1,5-cyclooctadiene)diiridium(I) dichloride 
• 671235-36-2 p-(3,5-bis(trifluoromethyl)phenyl)-C₆H₃(OP(tert-butyl)2)2 

Downstream Products

• 686274-20-4 [p-(3,5-CF₃)2C₆H₃C₆H₂-2,6-(OP(tBu)2)2]IrH₂ 
• 686274-31-7 Ir(H)C₆H₃(CH₃)2(P(C₄H₉)2O)2C₆H₂C₆H₃(CF₃)2 
• 752245-71-9 IrCH₂CHC(CH₃)3(C₆H₂(CF₃)2C₆H₃(OP(C(CH₃)3)2)2) 
• 752245-69-5 Ir(C₆H₂(CF₃)2C₆H₃(OP(C(CH₃)3)2)2)C₈H₁₄ 

Relevant academic research and scientific papers

Iridium Bis(phosphinite) p-XPCP Pincer Complexes: Highly Active Catalysts for the Transfer Dehydrogenation of Alkanes

A series of new bis(phosphinite) p-XPCPlrHCl pincer complexes {[PCP = η3-5-X-C6H2[OP-(tBu)2] 2-1,3], X = MeO (4a), Me (4b), H (4c), F (4d), C6F 5 (4e), and ArF [=3,5-bis(trifluoromethyl)phenyl] (4f)} have been synthesized. Treatment of compounds 4a-f with NatOBu in cyclooctane (COA)/tert-butylethylene (TBE) mixtures generates species with unprecedented catalytic activity for the catalyzed transfer dehydrogenation of COA with TBE as acceptor to form cyclooctene (COE) and tert-butylethane (TBA). With substrate: precatalyst ratios of 3030COA:3030TBE:1 p-XPCPlrHCl (4): 1.1NaOtBu, turnover numbers (TONs) between 1400 and 2200 (up to 72% conversion in TBE) and initial turnover frequencies (TOFs) between 1.6 and 2.4 s-1 have been observed at 200 °C.