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The major product of the reaction of benzyl chloride with red phosphorus in the system concentrated aqueous KOH-dioxane-phase-transfer catalyst (43–95°C, Ar) is tribenzylphosphine oxide (yield up to 61%). Under similar conditions, phosphorylation of benzyl chloride with white phosphorus occurs differently, yielding dibenzylphosphine oxide as major product. Conditions are found for preparative synthesis of dibenzylphosphine from phosphine and benzyl chloride in the system KOH-DMSO. [ABSTRACT FROM AUTHOR]

The article presents a study on microwave activation of the reaction of red phosphorus with alkenethiolate anions. It notes microwave irradiation of the mixture of red phosphorus and potassium alkanethiolates resulted in the reduction of the time of the reaction to five minutes. The researchers proved that there is a microwave activation of the new reaction of splitting the three dimensional macromolecule of red phosphorus under the action of sulfur centered nucleophiles.