Triphenylphosphine → HCID 11041943, compound

Participants

Reaction Steps

121 g (0.52 mole) of 3,4-dimethylphenylphosphonic acid dichloride and 283 g (1.08 moles) of triphenylphosphane were stirred for 11 hours at 200° C. under an atmosphere of nitrogen. Distillation was then carried out until an internal temperature of 170° C. at 0.067 kPa was reached. This gave 120 g, containing 45% of dichloro-3,4dimethylphenylphosphane and 48% of 3,4-dimethylphenylphosphonic acid dichloride. This corresponds to a yield of approx. 92% of theory at a conversion of 52.2%. Fractional distillation of the crude distillate gave pure dichloro-3,4-dimethylphenylphosphane, boiling point: 107° C./0.44 kPa.

Provenance & Evidence