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• W2013854645 endingPage "316" @default.
• W2013854645 startingPage "309" @default.
• W2013854645 abstract "A series of carboxylated phosphines of the type Ph2P(CH2)nCO2Na, where n = 1, 2, 4, 5, and 7, and p- or m-Ph2PC6H4CO2Na have been synthesized. The ligands are readily soluble in water. The water soluble complexes [RhCl(HEXNa)2]2, 1 (HEXNa = Ph2P(CH2)5CO2Na), and [RhCl(OCTNa)2]2, 2 (OCTNa = Ph2P(CH2)7CO2Na), have been prepared by the general reaction of exchange of PPh3 in RhCl(PPh3)3 with HEXNa or OCTNa ligands. A similar phosphine exchange reaction with Ph2P(CH2)CO2Na (NaA) led to a water insoluble complex which is formulated as Rh(PPh3)A(NaA), 3, in which NaA acts as a P-monodentate and A− as a P,O-chelating ligand. Complexes 1 and 2 were found to be effective catalysts for hydrogenation of olefins and polybutadiene in aqueous and aqueous/organic biphasic media, respectively. With both catalysts the terminal olefins were hydrogenated much faster than the internal olefins, but an unusually enhanced hydrogenation rate was observed in the hydrogenation of the internal double bonds in 2-pentene- and 3-pentenenitriles. The catalysts show selectivity for the hydrogenation of 1,2 (vinyl) addition units over 1,4 (internal) addition units present in the polybutadiene." @default.
• W2013854645 created "2016-06-24" @default.
• W2013854645 creator A5059368005 @default.
• W2013854645 creator A5067835887 @default.
• W2013854645 date "1997-02-01" @default.
• W2013854645 modified "2023-10-06" @default.
• W2013854645 title "Novel water soluble catalysts for hydrogenation of olefins and low molecular weight polymers in aqueous and aqueous/organic biphasic media" @default.
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• W2013854645 doi "https://doi.org/10.1016/s1381-1169(96)00280-4" @default.
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