C39H32OP2

Specification

Product Name:Dimethylbisdiphenylphosphinoxanthene

Synonyms:XANTPHOS;

4,5-BIS-DIPHENYLPHOSPHANYL-9,9-DIMETHYL-9H-XANTHENE;

4,5-BIS(DIPHENYLPHOSPHINO)-9,9-DIMETHYLXANTHENE;

9,9-DIMETHYL-4,5-BIS(DIPHENYLPHOSPHINO)XANTHENE;

(9,9-DIMETHYL-9H-XANTHENE-4,5-DIYL)BIS[DIPHENYL PHOSPHINE];

Dimethylbisdiphenylphosphinoxanthene;

9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene, XANTPHOS;

4,5-BIS(DIPHENYLPHOSPHINO)-9,9-DIMETHYLX

CAS:161265-03-8

MF:  C39H32OP2

MW:578.62

MP: 224-228 °C(lit.)

Storage temp.: Room temperature.

Xantphos is an organophosphorus compound derived from the heterocycle xanthene. It is used as a bidentate ligand and is noteworthy for having a particularly wide bite angle. Such ligands are useful in the hydroformylation of alkenes.^[1]Illustrative of its wide bite angle, it forms both cis and trans adducts of platinum(II) chloride. A related bidentate ligand with a greater bite angle is spanphos.

1. ^ Piet W. N. M. van Leeuwen, Paul C. J. Kamer, Joost N. H. Reek, and Peter Dierkes (2000). "Ligand Bite Angle Effects in Metal-catalyzed C-C Bond Formation". Chemical Reviews 100 (8): 2741–2769. doi:10.1021/cr9902704. PMID 11749304.
2. ^ Mirko Kranenburg, Yuri E. M. van der Burgt, Paul C. J. Kamer, Piet W. N. M. van Leeuwen, Kees Goubitz, and Jan Fraanje (1995). "New Diphosphine Ligands Based on Heterocyclic Aromatics Inducing Very High Regioselectivity in Rhodium-Catalyzed Hydroformylation: Effect of the Bite Angle". Organometallics 14 (6): 3081–3089. doi:10.1021/om00006a057.