Tris(cyanoethyl)phosphine is the organophosphorus compound with the formula P(CH2CH2CN)3. It is white solid that is air stable, which is unusual for a trialkylphosphine. It is prepared by the hydrophosphination of acrylonitrile with phosphine. The compound has been the subject of much research. For example, it can be used to synthesize Tris(2-carboxyethyl)phosphine (TCEP), an effective reagent for the desulfurization of organic disulfides.
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