Diphenylphosphinic acid

Empirical Formula (Hill Notation):	C12H11O2P
Linear Formula:	(C6H5)2P(O)OH
CAS Number:	1707-03-5
Molecular Weight:	218.19
Beilstein/REAXYS Number:	2804567
EC Number:	216-948-5
MDL number:	MFCD00002132
PubChem Substance ID:	57650161
NACRES:	NA.22

Кат. номер

43153-5G

43153-25G

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-O)cadmium(II)]-bis(µ-diphenylphosphinato-(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.
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.
5 g in glass bottle

Quality Level	100,
assay	≥98.0% (T)
mp	193-195 °C (lit.), 193-196 °C
solubility	0.1 M NaOH: soluble 0.5 g/10 mL, clear, colorless
SMILES string	OP(=O)(c1ccccc1)c2ccccc2
InChI	1S/C12H11O2P/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H,(H,13,14)
InChI key	BEQVQKJCLJBTKZ-UHFFFAOYSA-N

Personal Protective Equipment	Eyeshields,, Gloves,, type N95 (US),
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point F	Not applicable
Flash Point C	Not applicable