162379-72-8

Upstream product

• 72914-19-3 4,4'-di-tert-butyl-2,2'-bipyridine 
• 932-72-9 (Dichloroiodo)benzene 
• 1338929-92-2 PdCl((CH₃)3CC₅H₃N)2CH₂C(CH₃)2C₆H₅ 

Downstream Products

• 661477-51-6 [((4,4'-di-tert-butyl-2,2'-bipyridine)PdCl)2(μ-Cl)]B(C6F5)4 
• 1346261-14-0 PdCl(C₅H₃NC(CH₃)3)2N(SO₂C₆H₄CH₃)(CH₂)3CHCH₂ 
• 1354725-79-3 Pd((C₂H₅)2NC(Se)NC(C₆H₅)NC₆H₄CH₃)((CH₃)3CC₅H₃N)2⁽¹⁺⁾*PF₆^(1-)=[Pd((C₂H₅)2NC(Se)NC(C₆H₅)NC₆H₄CH₃)((CH₃)3CC₅H₃N)2]PF₆ 

Relevant academic research and scientific papers

C-H bond activation at palladium(IV) centers

This communication describes the first observation and study of C-H activation at a PdIV center. This transformation was achieved by designing model complexes in which the rate of reductive elimination is slowed relative to that of the desired C-H activation process. Remarkably, the C-H activation reaction can proceed under mild conditions and with complementary site selectivity to analogous transformations at PdII. These results provide a platform for incorporating this new reaction as a step in catalytic processes.

Transformation of sulfur dioxide to sulfate at a palladium centre

Reaction of 4,4′,4″-tri(tert-butyl)-2,2′:6′,2″-terpyridine (terpy*) with gaseous SO2-O2 mixtures and [PdCl2(MeCN)2] followed by aqueous workup affords crystallographically characterised [PdCl(terpy*)]Cl and both O- and S-bound [Pd(SO3)(terpy*)]. The former is also available from [PdCl2(MeCN)n] (n = 0, 2) and terpy*; the latter from aerobic oxidation of [Pd(dba)2]-terpy*-SO2 mixtures (dba = dibenzylideneacetone). Oxidation of [Pd(SO3)(terpy*)] with O2 (at 210°C in PhNO2) yields crystallographically characterised O-bound [Pd(SO4)(terpy*)]. The crystal structures of two related compounds are also reported: [Pd(OAc)(terpy*)]Cl and [PdCl2(bipy*)].