Reactions of 2- and 4-pyrones with secondary phosphine chalcogenides: a facile synthesis of functional phosphorylated pyrones
2013
Gusarova, Nina K. | Volkov, Pavel A. | Ivanova, Nina I. | Sukhov, Boris G. | Larina, Ludmila I. | Kazheva, Olga N. | Alexandrov, Grigorii G. | D’yachenko, Oleg A. | Trofimov, Boris A.
The oxidative cross-coupling between 4-hydroxy-6-methyl-2-pyrone or 3-hydroxy-2-methyl-4-pyrone and secondary phosphine chalcogenides proceeds in CCl4/Et3N under mild conditions (20–52°С, 0.75–10h) through the hydroxyl group to give O-(6-methyl-2-oxo-2H-pyran-4-yl) diorganylphosphinochalcogenoates or O-(2-methyl-4-oxo-4H-pyran-3-yl) diorganylphosphinochalcogenoates, in high yields.
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