Synthesis of new secondary phosphine chalcogenides with bulky substituents from aryl(hetaryl)ethenes,red phosphorus,sulfur, and selenium |
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| Authors: | S F Malysheva A V Artem’ev N K Gusarova B V Timokhin A A Tatarinova B A Trofimov |
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| Institution: | 1.Favorskii Irkutsk Institute of Chemistry, Siberian Branch,Russian Academy of Sciences,Irkutsk,Russia |
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| Abstract: | Phosphine generated along with hydrogen from red phosphorus and aqueous potassium hydroxide selectively reacts with aryl(hetaryl)ethenes
(α-methylstyrene, 2-vinylnaphthalene and 5-vinyl-2-methylpyridine) in superbasic system KOH-DMSO(H2O) to give secondary phosphines. The latter are practically quantitatively oxidized by elemental sulfur or selenium (20–25°C,
toluene, 0.5 h), to afford the hitherto unknown secondary phosphine chalcogenides with bulky arylalkyl pyridine and naphthyl
substituents. |
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