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43153 Aldrich

Diphenylphosphinic acid

≥98.0% (T)

  • CAS Number 1707-03-5

  • Linear Formula (C6H5)2P(O)OH

  • Molecular Weight 218.19

  •  Beilstein Registry Number 2804567

  •  EC Number 216-948-5

  •  MDL number MFCD00002132

  •  PubChem Substance ID 57650161

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Properties

Related Categories Building Blocks, Chemical Synthesis, Organic Building Blocks, Phosphonic/Phosphinic Acids, Phosphorus Compounds More...
InChI Key   BEQVQKJCLJBTKZ-UHFFFAOYSA-N
assay   ≥98.0% (T)
mp   193-195 °C(lit.)
  193-196 °C
solubility   0.1 M NaOH: soluble0.5 g/10 mL, clear, colorless

Description

Packaging

5 g in glass bottle

Application

Diphenylphosphinic acid is an important starting material for the synthesis of organophosphinic compounds. Diphenylphosphinic acid may be used for the preparation of coordination polymers, via reaction with alkaline earth metal salts in dimethylformamide (DMF) solvent:
• [Mg3(O2PPh2)6(DMF)2]·2DMF
• [Ca(O2PPh2)2(DMF)2]
• [Sr(O2PPh2)2(DMF)2]
• [Ba(O2PPh2)2(DMF)2]
It may be used for the synthesis of compounds with the Al-O-X (X = Si, P, C) motif, via reaction with LAlH2 (L = HC(CMeNAr)2, Ar = 2,6-iPr2C6H3). It may be employed as a novel co-adsorbent in dye-sensitized solar cells (DSCs) based on nanocrystalline TiO2 sensitized with N719 dye. It may be used in the synthesis of arylindium phosphinate.

General description

Diphenylphosphinic acid (DPPA, hdpp) is an organophosphinic acid compound. It finds application as a reactive flame-retardant and promoter for palladium catalytic systems. Thermal degradation of DPPA has been studied by thermogravimetric analysis (TGA) method. DPPA reacts with cadmium nitrate in dimethylformamide solvent to afford the one-dimensional coordination polymer catena-poly[[bis(dimethylformamide-κO)cadmium(II)]-bis(μ-diphenylphosphinato-κ(2)O:O′)]. It has been repoted to promote the carbonylation of nitrobenzene and aniline to diphenylurea. Ortho-lithiated DPPA can form mono ortho-functionalized derivatives by electrophilic trapping and biphenyl-2,2′-diylbis(phenylphosphinic acid) by copper catalyzed coupling.

Price and Availability

Suggested Laboratory Gloves


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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
SZ5315000
Protocols & Articles
Peer-Reviewed Papers
15

References

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