1,2-Bis(diphenylphosphino)ethane

  • Dppe
  • Diphos

Yellowish powder

Fixed

138-142 ° C

Insoluble in THF: 75 g · l -1 ( 25 ° C)

Attention

Template: Infobox chemical / molecular formula search available

Bis (diphenylphosphino ) ethane is an organic compound. It is used as a ligand for catalytically active complexes.

Representation

DPPE can be prepared from the reaction between chlorodiphenylphosphine, 1,2- dibromoethane, and metallic sodium. Here chlorodiphenylphosphine is first metalated with sodium. The species formed nucleophilic then accesses to the bromoalkane. Byproducts of sodium bromide and sodium chloride.

Use

DPPE is used as a bidentate chelate ligand in homogeneous transition metal catalysts, wherein the two phosphorus atoms in the metal coordination used.

CAS registry number Dangerous Substances Directive (67/548/EEC) Chemical reaction 1,2-Dibromoethane 1,1-Bis(diphenylphosphino)methane 1,3-Bis(diphenylphosphino)propane
8983
de