Methylenebis(diphenylphosphine)

Basic Information

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CAS Number

2071-20-7

Molecular Formula

C25H22P2

Molecular Weight

384.4 g/mol

Chemical Classification

Agricultural Chemicals Pesticides Insecticides

Basic Physical Properties

Melting Point

118.0 to 122.0 deg-C

Boiling Point

497.2 °C at 760 mmHg

Density

1.1490

Water Solubility

Insoluble in water.

Flash Point

270.2 °C

SMILES

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C1=CC=C(C=C1)P(CP(C2=CC=CC=C2)C3=CC=CC=C3)C4=CC=CC=C4

InChI

InChI=1S/C25H22P2/c1-5-13-22(14-6-1)26(23-15-7-2-8-16-23)21-27(24-17-9-3-10-18-24)25-19-11-4-12-20-25/h1-20H,21H2

InChIKey

XGCDBGRZEKYHNV-UHFFFAOYSA-N

LogP

5.209700000000005

Topological Polar Surface Area

0.0 Å²

Hydrogen Bond Donor/Acceptor

0 / 0

Complexity

325

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

Sensitiveness

Air Sensitive

Synonyms & References

English

Phosphine, methylenebis[diphenyl-
Q419624
Methylenebis[diphenylphosphine]
Phosphine, methylenebis*diphenyl-
[(diphenylphosphanyl)methyl]diphenylphosphane
BCP22500
NS00045354
SY009780
DPPM [MI]
GS-3063
Phosphine, 1,1'-methylenebis[1,1-diphenyl-
DTXSID10174766
HY-W001950
bis(di-phenylphosphino)methane
XGCDBGRZEKYHNV-UHFFFAOYSA-
Methanediylbis[diphenylphosphine]
2071-20-7
EINECS 218-194-2
AKOS004908992
SCHEMBL114543
1-Benzyl-3-azetidine-1,3-dicarboxylate
Bis(diphenylphosphino)methane, 97%
NSC-147767
W-107598
(C6H5)2PCH2P(C6H5)2
InChI=1/C25H22P2/c1-5-13-22(14-6-1)26(23-15-7-2-8-16-23)21-27(24-17-9-3-10-18-24)25-19-11-4-12-20-25/h1-20H,21H2
B1982
EN300-140960
Tetraphenylmethylenediphosphine
UNII-I5O2HZR38V
NSC 147767

MDL Number

MFCD00003537

Customs Code

29310095

FAQ

What are the physical and chemical properties of Methylenebis(diphenylphosphine) (CAS: 2071-20-7)?

Methylenebis(diphenylphosphine) is a colorless liquid with a molecular weight of approximately 308.27 g/mol. It has a low solubility in water but is soluble in common organic solvents such as ethanol and acetone. This compound is known for its reactivity towards metal complexes and is often used as a ligand in transition metal catalysis. Its crystalline form is not common, and it is typically used in its liquid state.

How is Methylenebis(diphenylphosphine) (CAS: 2071-20-7) typically synthesized?

Methylenebis(diphenylphosphine) is typically synthesized via the reaction of diphenylphosphine with a suitable reagent such as chloromethane. The synthesis is usually performed under mild conditions, and the yield can be as high as 85%. Commonly, this reaction is catalyzed by various Lewis acids to improve selectivity and efficiency.

What industries use Methylenebis(diphenylphosphine) (CAS: 2071-20-7)?

Methylenebis(diphenylphosphine) is primarily used in the pharmaceutical industry for ligand applications in transition metal catalysis, particularly in C-H bond activation reactions. It is also used in the polymer industry for the synthesis of functional polymers and in the semiconductor industry for the deposition of phosphorus-doped films. Additionally, it finds applications in the production of sensors and as a ligand in various chemical reactions.

What precautions should be taken when handling Methylenebis(diphenylphosphine) (CAS: 2071-20-7)?

When handling Methylenebis(diphenylphosphine), it is crucial to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. Ensure that all operations are conducted in a well-ventilated area or a fume hood to minimize inhalation risks. Spills should be cleaned up using absorbent materials, and the area should be flushed with water. Refer to the Safety Data Sheet (SDS) for detailed handling and disposal instructions.