86539-33-5

Upstream product

• 89566-63-2 C₄₀H₆₇P₂^(1-)*Li⁽¹⁺⁾ 
• 89566-65-4 1-Butyl-2-methyl-1,2-bis-(2,4,6-tri-tert-butyl-phenyl)-diphosphane 
• 83466-54-0 Bis(2,4,6-tri-tert-butylphenyl)diphosphen 
• 3975-77-7 1-bromo-2,4,6-tri-tert-butylbenzene 
• 182227-53-8 C₁₉H₃₂ClP 
• 74-88-4 methyl iodide 
• 89566-71-2 C₄₁H₇₀P₂S 
• 83115-14-4 meso-bis(2,4,6-tri-tert-butylphenyl)diphosphene 

Downstream Products

• 255907-56-3 Pt(((CH₃C₆H₄)2PC₁₀H₆)2)(CH₃)(PH(CH₃)(C₆H₂(C₄H₉)3))⁽¹⁺⁾*BF₄^(1-)=[Pt(((CH₃C₆H₄)2PC₁₀H₆)2)(CH₃)(PH(CH₃)(C₆H₂(C₄H₉)3))]BF₄ 
• 182227-76-5 [Ni(CO)3(PH(CH₃)(C₆H₂(C₄H₉)3))] 

Relevant academic research and scientific papers

Isolation of a Highly Persistent Diphosphanyl Radical: The Phosphorus Analogue of a Hydrazyl

Stable for at least one week below -30°C: crystals of 1, the first highly persistent diphosphanyl radical, have been isolated and characterized. This phosphorus-centered radical exhibits hyperfine coupling whose anisotropy is considerably larger than that for well-established nitrogen radicals (hydrazyls nitroxides). This feature is of potential interest for studies of fast molecular movements. Mes =2,4,6-tBu3C6H2.

Synthesis, Coordination Chemistry and Ligand Properties of Secondary Phosphines R(Ar*)PH with Bulky Aromatic Substituents - Molecular Structure of Ph(2,4,6-iPr3C6H2)PH, (2,4,6-iPr3C6H2)2PH and ClAu[PhP(2,4,6-tBu3C6H2)H]

The secondary phosphines R(Ar*)PH (R = Me, iPr, Ph, Mes, Ar*) (2a-2h) with bulky aromatic substituents Ar* (Ar* = 2,3,6-R′3C6H2, R′ = iPr, tBu) are obtained in good yields by reaction of RPCl2, PCl3, PBr3 or Ar*P(Cl,Br)2 with 2,4,6-tBu3C6H2Li or 2,4,6-iPr3C6H2MgBr and subsequent reduction of the intermediate halophosphines R(Ar*)PX (X = Cl, Br) with LiAlH4. The X-ray structural analysis of Ph(2,4,6-iPr3C6H2)PH (2g), space group P1, shows P-C-distances of 1.824(1) and 1.838(1)?. The lithium derivatives of 2a-2c are monomeric in solution as indicated by the 1 : 1 : 1 : 1-quartet 7Li-31P fine structure of the 31P{1H} NMR signals at low temperatures. 2a-2c and 2f-2h form Ni(0) and Fe(0) complexes (CO)3NiL (6a-6f) and Fe(CO)4L (7a-7d), respectively. The Tolman electronic parameters ν of the bulky ligands are almost identical. Within the series 2a-2h the spatial shielding of the P atoms has been estimated using advanced molecular modeling techniques. The bulky ligancl 2c forms coinage metal complexes [Cu(CH3CN)2(2c)2] [PF6] (8). Cu2Cl2(2c)2 (9) and Cl-Au(2c) (10). While 10 is monomeric in solution, in the solid state it forms pairs of head to tail oriented monomers with almost linear Cl-Au-P skeletons (Cl-Au-P 175.47(9)°) as shown by an X-ray structural analysis.

REACTION OF A DIPHOSPHENE WITH BUTYLLITHIUM

1,2-Bis(2,4,6-tri-t-butylphenyl)diphosphene reacted with butyllithium to give 1-alkyl-2-butyl-1,2-bis(2,4,6-tri-t-butylphenyl)diphosphanes after quenching with various alkyl halides, sulfurization of which afforded diphosphane monosulfides.

REDUCTION OF DIPHOSPHENE: FORMATION OF d1- AND meso-DIPHOSPHANES

Bis(2,4,6-tri-tert-butylphenyl)diphosphene was reduced with aluminium hydrides to give d1- and meso-bis(2,4,6-tri-tert-butylphenyl)diphosphanes as stable compounds.