1,2,3,4,5-Pentaphenyl-1′-(di-tert-butylphosphino)ferrocene

[312959-24-3] C48H47FeP (MW 710.71) InChI = 1S/C35H25.C13H22P.Fe/c1-6-16-26(17-7-1)31-32(27-18-8-2-9-19-27)34(29-22-12-4-13-23-29)35(30-24-14-5-15-25-30)33(31)28-20-10-3-11-21-28;1-12(2,3)14(13(4,5)6)11-9-7-8-10-11;/h1-25H;7-10H,1-6H3; InChIKey = YOQRDWPCPFCDLP-UHFFFAOYSA-N (ligand used for palladium-catalyzed arylation reactions) Alternate Name: Q-phos. Physical Data: none measured. Solubility: soluble in ether, benzene, toluene, THF. Form Supplied in: pink solid Analysis of Reagent Purity: 31P NMR (C6D6): δ 25.49. Preparative Methods: di-tert-butylphosphinoferrocene treated with sodium tert-butoxide and palladium acetate in neat phenyl chloride. Purification: silica gel chromatography eluting with pentane/Et2O (80/1). Handling, Storage, and Precautions: it is stable indefinitely in air and is air stable in solution for up to 2 months without evidence for formation of the phosphine oxide.