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Tris-(4-butyl-phenyl)-phosphane, also known as tri(4-butylphenyl)phosphine, is an organophosphorus compound with the chemical formula C24H33P. It is a colorless, crystalline solid that is soluble in organic solvents. Tris-(4-butyl-phenyl)-phosphane is primarily used as a ligand in homogeneous catalysis, particularly in the field of transition metal catalysis. It is known for its ability to stabilize metal centers and facilitate various chemical reactions, such as hydrogenation, hydroformylation, and olefin polymerization. The bulky butyl groups on the phenyl rings provide steric hindrance, which can influence the selectivity and activity of the catalysts in which it is used. Tris-(4-butyl-phenyl)-phosphane is also valued for its thermal stability and resistance to oxidation, making it a robust choice for industrial applications.

76287-43-9

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76287-43-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76287-43-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,2,8 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 76287-43:
(7*7)+(6*6)+(5*2)+(4*8)+(3*7)+(2*4)+(1*3)=159
159 % 10 = 9
So 76287-43-9 is a valid CAS Registry Number.

76287-43-9Relevant academic research and scientific papers

Preparation and Properties of Tertiary p-Alkylarylphosphines containing Straight-chain Alkyl Groups

Franks, Stephen,Hartley, Frank R.

, p. 2233 - 2237 (2007/10/02)

A series of tris(p-alkylaryl)phosphines with straight-chain alkyl groups, P(p-C6H4-CnH2n+1)3 where n=2-9, have been prepared by reaction of phosphorus trichloride with the Grignard reagent derived from the corresponding p-bromoalkylbenzene.When n=2 and 3 the phosphines are crystalline solids, but for n>3 they are viscous oils up to n=9, which is a waxy solid.The phosphines have been characterised by microanalysis, and i.r., 1H and 31P n.m.r., and mass spectrometry.The p-substituted-arylphosphines are more sensitive than triphenylphosphine to air; aerial oxidation converts them exclusively into the corresponding phosphine oxides, in contrast to trialkylphosphines which are oxidised to a complex mixture of products.The complexing ability of the new phosphines (PAr3) is demonstrated by their ready displacement of 1,5-cyclo-octadiene (cod) from (M=Pd and Pt) to yield trans- and cis-, respectively.

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