Bis(pentafluoroethyl)phosphinic acid → Bis(pentafluoroethyl)phosphinyl chloride

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Reaction Steps

21.75 g (72 mmol) of bis(pentafluoroethyl)phosphinic acid are added dropwise at room temperature to 20.0 g (80 mmol) of phenyltetrachlorophosphorane, and the mixture is stirred for four hours. Bis(pentafluoroethyl)phosphinyl chloride is separated off by distillation at atmospheric pressure, giving 18.1 g of bis(pentafluoroethyl)phosphinyl chloride, which corresponds to a yield of 78%, based on the phosphinic acid employed.

Provenance & Evidence