Dichlorophenylphosphine is an organophosphorus compound with the formula C6H5PCl2. This colourless viscous liquid is commonly used in the synthesis of organophosphines.
Names | |
---|---|
Preferred IUPAC name
Phenylphosphonous dichloride | |
Other names
Dichlorophenylphosphane
Phenylphosphorus dichloride | |
Identifiers | |
| |
3D model (JSmol)
|
|
ChEMBL |
|
ChemSpider |
|
ECHA InfoCard | 100.010.388 |
EC Number |
|
PubChem CID
|
|
RTECS number |
|
UNII |
|
UN number | 2798 |
CompTox Dashboard (EPA)
|
|
| |
| |
Properties | |
C6H5Cl2P | |
Molar mass | 178.98 g·mol−1 |
Appearance | colorless liquid |
Odor | acrid, pungent |
Density | 1.3190 g/mL |
Melting point | −51 °C (−60 °F; 222 K) |
Boiling point | 222 °C (432 °F; 495 K) |
insoluble | |
Solubility | miscible in benzene, CS2, chloroform |
Refractive index (nD)
|
1.6030 |
Hazards | |
GHS labelling: | |
Danger | |
H290, H301, H302, H314, H335 | |
P234, P260, P261, P264, P270, P271, P280, P301+P310, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P330, P363, P390, P403+P233, P404, P405, P501 | |
NFPA 704 (fire diamond) | |
Flash point | 101 °C (214 °F; 374 K) |
159 °C (318 °F; 432 K) | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
|
200 mg/kg (oral, rat) |
Safety data sheet (SDS) | Fisher MSDS |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
verify (what is ?)
Infobox references
|
Dichlorophenylphosphine is commercially available. It may be prepared by an electrophilic substitution of benzene by phosphorus trichloride, catalyzed by aluminium chloride.[1][2] However, aluminum chloride often induces diarylation; a cleaner catalyst for monoarylation is stannic chloride.[2] The compound is an intermediate for the synthesis of other chemicals for instance dimethylphenylphosphine:
Many tertiary phosphines can be prepared by this route.[3]
In the McCormack reaction dichlorophenylphosphine adds dienes to give the chlorophospholenium ring.[4]
Reductive coupling of the dichlorophosphine gives the cyclophosphine (PhP)5.[5]