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diphenylphosphanylmethyl(diphenyl)phosphane

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Origin: China

Cas No: 2071-20-7

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Quick Details
CAS No.:
2071-20-7
Other Names:
2071-20-7
MF:
C25H22P2
EINECS No.:
218-194-2
Place of Origin:
China
Type:
Pharmaceutical Intermediates
Purity:
98%
Brand Name:
Leah chem
Model Number:
Leah 2071-20-7
Application:
Phosphine Ligands
Appearance:
White powder
Product name:
Bis(diphenylphosphino)methane
Synonyms:
Bis(diphenylphosphino)methane
CAS:
2071-20-7
EINECS:
218-194-2
Molecular formula:
C25H22P2
Molecular weight:
384.39
Assay:
98%
Color:
White powder
Certification:
COA
Brand:
Leah chem
Packaging&Delivery
Packaging Details
25kgs/drum
Port
Shanghai
Lead Time:
Quantity(Bags) 1 - 2000 >2000
Est. Time(days) 2 To be negotiated

Property

CAS No.: 2071-20-7 Formula: C25H22P2 Molecular Weight: 384.39000

Description

1,1-Bis(diphenylphosphino)methane (dppm), is an organophosphorus compound with the formula CH2(PPh2)2. Dppm, a white, crystalline powder, is used in inorganic and organometallic chemistry as a ligand. It is more specifically a chelating ligand because it is a ligand that is attached to the central metals (the phosphorus) by bonds from two or more donor atoms.

Basic Info

Chemical Name	diphenylphosphanylmethyl(diphenyl)phosphane
Synonyms	Bis(diphenylphosphino)methane; dppm; Methylenebis(diphenylphosphine); Ph2PCH2PPh2; Tetraphenylmethylenediphosphine;
CAS No.	2071-20-7
Molecular Formula	C25H22P2
Molecular Weight	384.39000
PSA	27.18000
LogP	5.20970

Properties

Appearance & Physical State	White powder or crystalline powder
Boiling Point	497.2ºC at 760 mmHg
Melting Point	118-122ºC
Flash Point	270.2ºC
Storage Condition	Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Vapor Pressure	1.55E-09mmHg at 25°C

Safety Info

Safety Statements	S26-S37/39
HS Code	29310095
WGK Germany	3
Risk Statements	R36/37/38
Hazard Codes	Xi

Synthesis Route

diphenylphosphanylmethyl-diphenyl-sulfanylidene-λ5-phosphane→diphenylphosphinothioylmethyl-diphenyl-sulfanylidene-λ5-phosphane+diphenylphosphanylmethyl(diphenyl)phosphane
Methanol+H2C(PPh2BH3)2→trimethyl borate+diphenylphosphanylmethyl(diphenyl)phosphane
chloroform+potassium,diphenylphosphanide→Tetraphenylbiphosphine+diphenylphosphanylmethyl(diphenyl)phosphane

Precursor

dibromomethane
dichloromethane
Diphenylphosphine
H2C(PPh2BH3)2

Downstream Product

Dimethyl sulfide
diphenylphosphinothioylmethyl-diphenyl-sulfanylidene-λ5-phosphane
(cyclopentadienyl)(dimethylsulfide){methylenebis(diphenylphosphane)}iron(II) tetrafluoroborate
diphenylphosphinic acid

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