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Diphenyl-<2-diphenylmethyl-phenyl>-phosphin, also known as 1,1-diphenyl-2-(2-diphenylmethylphenyl)phosphole, is a phosphorus-containing heterocyclic compound with the molecular formula C27H21P. It is a derivative of phosphole, a five-membered ring with alternating carbon and phosphorus atoms. This specific compound features two phenyl groups attached to the phosphorus atom and a 2-diphenylmethyl-phenyl group as a substituent on the phosphole ring. Diphenyl-<2-diphenylmethyl-phenyl>-phosphin is an important building block in the synthesis of various phosphorus-containing organic compounds, particularly those with potential applications in materials science, pharmaceuticals, and agrochemicals. Its unique structure and reactivity make it a valuable intermediate in the development of new compounds with specific properties and functions.

809-52-9

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809-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 809-52-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,0 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 809-52:
(5*8)+(4*0)+(3*9)+(2*5)+(1*2)=79
79 % 10 = 9
So 809-52-9 is a valid CAS Registry Number.

809-52-9Relevant academic research and scientific papers

Synthesis, Coordination Properties, and Catalytic Application of Triarylmethane-Monophosphines

Iwai, Tomohiro,Tanaka, Ryotaro,Sawamura, Masaya

, p. 3959 - 3969 (2016)

A new class of triarylmethane-based phosphines (L1-L4) and their Pd(II) and Rh(I) complexes were synthesized and subsequently characterized by NMR spectroscopy and X-ray diffraction analysis. The reactions of these phosphines with [PdCl(π-allyl)]2 gave the square-planar Pd(II) complexes [PdCl(π-allyl)(L)] (L = L1-L4). The treatment of [PdCl(π-allyl)(L3)] and [PdCl(π-allyl)(L4)], which have CF3-substituted triarylmethane and 9-arylfluorene moieties, respectively, with LiOtBu afforded P,C(sp3)-chelated palladacycle complexes. Reversibility between a C(sp3)-M covalent bond and a C(sp3)-H···M interaction was experimentally demonstrated using [RhCl(nbd)]2 as a Rh(I) source. The triarylmethane-monophosphines L1-L4 were applied to the Pd-catalyzed 1,4-addition of arylboronic acids to enones.

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