Free-radical addition of phosphine to vinyl ethers: atom-economic synthesis of tris(2-organyloxyethyl)phosphines and their derivatives
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Add time:09/07/2019 Source:sciencedirect.com
Phosphine, generated from red phosphorus in the system KOH–H2O–toluene, reacts with vinyl ethers under radical initiation (AIBN, dioxane, 78–80 °C, atmospheric pressure) to give tris(2-organyloxyethyl)phosphines, which are transformed to the corresponding phosphine chalcogenides (in up to 73% isolated yield) via the reactions with air oxygen, elemental sulfur or selenium.
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