1,2-Bis(dichlorophosphino)ethane is an organophosphorus compound with the formula (CH2PCl2)2. This colorless liquid is a precursor to chelating diphosphines.
Synthesis and reactions It is prepared by the reaction of ethylene, white phosphorus, and phosphorus trichloride: 3 C2H4 + 0.5 P4 + 4 PCl3 → 3 (CH2PCl2)2 The compound reacts with Grignard reagents and secondary amines to give chelating ligands. An often practiced use of this compound is the synthesis of 1,2-bis(dimethylphosphino)ethane.
Related compounds 1,2-Bis(dichlorophosphino)benzene 1,2-Bis(diisopropylphosphino)ethane
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