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HomeProduct name list1,2-Bis(diphenylphosphino)ethane

1,2-Bis(diphenylphosphino)ethane

Synonym(s):1,2-Bis(diphenylphosphino)ethane;Diphos;dppe

  • CAS NO.:1663-45-2
  • Empirical Formula: C26H24P2
  • Molecular Weight: 398.42
  • MDL number: MFCD00003047
  • EINECS: 216-769-2
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-12-18 14:08:57
1,2-Bis(diphenylphosphino)ethane Structural

What is 1,2-Bis(diphenylphosphino)ethane?

Description

Dppe can also make a useful replacement for triphenylphosphine in reactions such as Mitsunobu or Staudinger reactions. The corresponding bis(phosphine oxide) by-pdt is more polar than triphenylphosphine oxide, making it often easier to separate from desired products.

Chemical properties

white to light yellow crystal powde

The Uses of 1,2-Bis(diphenylphosphino)ethane

1,2-Bis(diphenylphosphino)ethane is a bidendate ligand used in coordination chemistry to prepare metal complexes. It is involved in the metal-catalyzed allylic alkylation and decarboxylation of allylic esters. It is also used in 1,3-diene synthesis. Further, it is used in cycloaddition reactions and carbonylation reactions. In addition to this, it is used to prepare bis(dicyclohexylphosphino)ethane by hydrogenation.

The Uses of 1,2-Bis(diphenylphosphino)ethane

suzuki reaction

Definition

ChEBI: 1,2-bis(diphenylphosphino)ethane is a tertiary phosphine and a member of diphosphanes. It has a role as an allergen.

Purification Methods

Recrystallise it from aqueous EtOH or *C6H6. The dimethiodide, when recrystallised from MeOH has m 305-307o, and the dioxide when recrystallised from toluene or DMF (needles), or *C6H6 (plates) has m 252-254o (276-278o) [Isslieb et al. Chem Ber 92 3175 1959, NMR: Aquiar et al. J Org Chem 29 1660 1964, B.ckvall et al. J Org Chem 52 5430 1987]. [Beilstein 16 IV 958.]

Properties of 1,2-Bis(diphenylphosphino)ethane

Melting point: 137-142 °C (lit.)
Boiling point: 514.8±33.0 °C(Predicted)
storage temp.  Inert atmosphere,Room Temperature
solubility  Soluble in acetone, methanol and alcoholic hydrochloric acid.
form  Crystalline Powder or Crystals
appearance White solid
color  White to off-white
Sensitive  Air Sensitive
BRN  761261
Stability: Stable. Combustible. Incompatible with strong oxidizing agents. May be air-sensitive.
InChI InChI=1S/C26H24P2/c1-5-13-23(14-6-1)27(24-15-7-2-8-16-24)21-22-28(25-17-9-3-10-18-25)26-19-11-4-12-20-26/h1-20H,21-22H2
CAS DataBase Reference 1663-45-2(CAS DataBase Reference)
NIST Chemistry Reference Phosphine, 1,2-ethanediylbis[diphenyl-(1663-45-2)
EPA Substance Registry System Phosphine, 1,2-ethanediylbis[diphenyl- (1663-45-2)

Safety information for 1,2-Bis(diphenylphosphino)ethane

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P271:Use only outdoors or in a well-ventilated area.
P405:Store locked up.
P403+P233:Store in a well-ventilated place. Keep container tightly closed.
P501:Dispose of contents/container to..…

Computed Descriptors for 1,2-Bis(diphenylphosphino)ethane

InChIKey QFMZQPDHXULLKC-UHFFFAOYSA-N
SMILES C1C=CC=CC=1P(CCP(C1=CC=CC=C1)C1=CC=CC=C1)C1=CC=CC=C1

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