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US 4,374,780 AGranted
Di-2,4,4'-trimethylpentylphosphinic acid and its preparation
AssigneeAmerican Cyanamid Company
InventorAllan J. Robertson
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Abstract
Free radical addition of two moles of 2,4,4'-trimethylpentene-1 to 2,4,4'-trimethylpentylphosphine followed by the oxidation of the 2,4,4'-trimethylpentylphosphine with two moles of hydrogen peroxide is employed to prepare 2,4,4'-trimethylpentylphosphinic acid. The 2,4,4'-trimethylpentylphosphinic acid is useful as a cobalt extractant.
Claims1
The compound di-2,4,4'-trimethylpentylphosphinic acid.
Dependencies are inferred from the claim text.