Palladium and platinum catalyzed hydroselenation of alkynes: Se H vs Se Se addition to C C bond

…, IP Beletskaya, GG Aleksandrov, IL Eremenko

文献索引：Ananikov, Valentine P.; Malyshev, Denis A.; Beletskaya, Irina P.; Aleksandrov, Grigory G.; Eremenko, Igor L. Journal of Organometallic Chemistry, 2003 , vol. 679, # 2 p. 162 - 172

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被引用次数: 55

摘要

A mechanistic study of the hydroselenation of alkynes catalyzed by Pd (PPh3) 4 and Pt (PPh3) 4 has shown that the palladium complex gives products of both Se H and Se Se bond addition to the triple bond of alkynes, while the platinum complex selectively catalyzes Se H bond addition. The key intermediate of PhSeH addition to the metal center, namely Pt (H)(SePh)(PPh3) 2, was detected by 1H-NMR spectroscopy. The analogous palladium ...