Reaction of Red Phosphorus with 4-Methoxystyrene in KOH-DMSO System: One-Pot Synthesis of Tris[2-(4-methoxyphenyl)ethyl]phosphane Oxide |
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| Authors: | Nina K Gusarova Svetlana F Malysheva Natal’ya A Belogorlova Alexander V Artem’ev Vladimir A Kuimov Boris A Trofimov |
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| Institution: | A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences , Irkutsk, Russia |
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| Abstract: | Abstract Red phosphorus reacts with 4-methoxystyrene in the KOH-DMSO superbase system (130 °C, 3 h, Ar) in the presence of a small quantity of H2O to give tris2-(4-methoxyphenyl)ethyl]phosphane oxide as the main product in 30% yield. Microwave activation of the reaction (600 W, 6 min) affords basically a mixture of the phosphane oxide and tris2-(4-methoxyphenyl)ethyl]phosphane (in a ratio of 1:1). When the mixture is exposed to air (r.t., 24 h), the phosphane oxide is formed in 85% yield. GRAPHICAL ABSTRACT |
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| Keywords: | 4-Methoxystyrene microwave irradiation phosphane oxide red phosphorus superbase system |
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