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Triphenylarsine is used in certain metal-catalyzed coupling reactions. It is a precursor to tetraphenylarsonium chloride a popular precipitating agent.
Raj K. Poddar; I.P. Khullar; Umesh Agarwala. Some ruthenium(III) complexes with triphenylarsine.Inorganic and Nuclear Chemistry Letters.1974, 10 221-227.
Clifford R. Kistner; Jon D. Blackman; William C. Harris. Preparation and properties of some triphenylarsine- and triphenyl-stibine-stabilized organoplatinum(II) compounds.Inorg. Chem.1969, 8 (10), 2165-2167.
Can be cleaved to sodium diphenylarsenide by Na metal. A mole of PhNa is also produced, but can be selectively destroyed by protonation with NH4Br: Chem. Ber., 100, 1230 (1967). For use in the preparation of chelating ligands, see: Synthesis, 350 (1979). Similarly, Li metal gives Li diphenylarsenide: J. Org. Chem., 32, 2627 (1967). For a review of the chemistry of metal arsenides, see: Synthesis, 328 (1974).
Preferred to phosphines as a ligand in certain metal-catalyzed coupling reactions, e.g. in the Pd catalyzed Stille coupling of aryl stannanes with aryl halides: Tetrahedron Lett., 36, 2191 (1995), of silylated allylic stannanes with alkyl halides: J. Org. Chem., 60, 4647 (1995), the Pd catalyzed homocoupling of organostannanes: Synth. Commun., 27, 641 (1997), the Pd catalyzed coupling of aryl- or alkynylzinc chlorides with alkenyl halides: Synlett, 344 (1995), or the Suzuki coupling of arylboronic acids with sensitive halides: Org. Synth., 75, 69 (1997).
Hazard Statements: H301-H331
Toxic if swallowed. Toxic if inhaled.
Precautionary Statements: P261-P301+P310a-P304+P340-P311a-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray. IF SWALLOWED: IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.