1, 3-bis (diphenylphosphine) propane (dppp) is a diphosphine ligand in coordination chemistry.
Diphosphine can be prepared by reacting lithium diphenylphosphine with 1, 3-dichloropropane:
2 Ph2PLi + C3H6Cl2 → Ph2PC3H6PPh2 + 2 LiCl
Diphosphine is a prerequisite for the complex dichloride (1, 3-bis (diphenylphosphine) propane) nickel, which is prepared by mixing an equivalent ligand with nickel dichloride hexahydrate. The nickel complex can be used as catalyst for Kumada coupling reaction.
dppp is also used to complex palladium divalent catalysts to copolymerize carbon monoxide with ethylene to obtain polyketones.
Product name: 1, 3-BIS (diphenylphosphino)propane
CAS number: 6737-42-4
Molecular formula: C27H26P2
Molecular weight: 412.44300
Accurate mass: 412.15100
PSA: 27.18000
LOGP: 5.64230
Appearance and properties: gray crystal powder
Boiling point: 529.7ºC at 760 mmHg
Melting point: 63-65 °C(lit.)
Flash point: 235°C
Water solubility: insoluble
Stability: Thermal decomposition may produce toxic fumes of phosphorous oxides and/or phosphine.
Store in a cool, dry place. Store in a tightly closed container.
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