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- W2020456487 abstract "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 SeH and SeSe bond addition to the triple bond of alkynes, while the platinum complex selectively catalyzes SeH 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 complex rapidly decomposes with evolution of molecular hydrogen. A convenient method was developed for the preparation of Markovnikov hydroselenation products H2CC(SePh)R, and the scope of this reaction was investigated. The first X-ray structure of the Markovnikov product H2CC(SePh)CH2N+HMe2·HOOCCOO− is reported." @default.
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- W2020456487 date "2003-08-01" @default.
- W2020456487 modified "2023-10-12" @default.
- W2020456487 title "Palladium and platinum catalyzed hydroselenation of alkynes: SeH vs SeSe addition to CC bond" @default.
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- W2020456487 doi "https://doi.org/10.1016/s0022-328x(03)00546-1" @default.
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