Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

RuH2 PPh

Both cis- and (rans-structures are possible RuH2(PMe3)4 is cis (Ru-H 1.507, 1.659 A, Ru-P 2.276-2.306 A) [90] while spectra show that RuH2(PF3)4 and others have this configuration. RuH2[PPh(OEt)2]4 is definitely trans (X-ray) with Ru-H 1.6 A, Ru-P 2.272 A. Many diphosphines form dihydrides. Ru(dmpe)2H2 has been a useful starting material for the synthesis of thiolate complexes [91] such as fra s-Ru(SPh)2(dmpe)2. [Pg.33]

Finally rare examples of polydentate P donor ligand complexes containing two hydrido groups are ds-[RuH2 P(OMe)3 (ttp)] and trans- [RuH2(PPh,)(ttp)] (ttp = PhP(CH2CH2CH2pPh2)2), prepared by reaction of [RuH(BH4)(ttp)] (Section 45.10.3.2.i) with the appropriate P donor ligand and EtjN in... [Pg.451]

General Synthesis.— The catalyst RuH2(PPh)4 brings about the oxidative condensation of diols to lactones, in addition to the conversion of alcohols to esters. o>-Benzyloxymethyl esters are converted into lactones in 71—91% yield when treated with the hydride abstractor Ph3C BF4 or the radical cation (p-BrPh)3NSbCl6 (Scheme 59). ... [Pg.124]

See other pages where RuH2 PPh is mentioned: [Pg.29]    [Pg.451]    [Pg.29]    [Pg.817]    [Pg.3905]    [Pg.355]    [Pg.455]    [Pg.63]    [Pg.272]    [Pg.119]    [Pg.29]    [Pg.451]    [Pg.29]    [Pg.817]    [Pg.3905]    [Pg.355]    [Pg.455]    [Pg.63]    [Pg.272]    [Pg.119]    [Pg.29]    [Pg.558]    [Pg.44]    [Pg.287]    [Pg.573]    [Pg.573]    [Pg.673]    [Pg.699]    [Pg.195]    [Pg.463]    [Pg.1395]    [Pg.1021]    [Pg.29]    [Pg.223]    [Pg.187]    [Pg.30]    [Pg.803]    [Pg.286]    [Pg.371]    [Pg.399]    [Pg.451]    [Pg.452]    [Pg.452]    [Pg.455]    [Pg.455]    [Pg.456]    [Pg.462]    [Pg.463]    [Pg.463]    [Pg.1394]    [Pg.1395]    [Pg.3740]   
See also in sourсe #XX -- [ Pg.3 , Pg.6 , Pg.6 , Pg.29 ]

See also in sourсe #XX -- [ Pg.3 , Pg.55 , Pg.220 , Pg.229 , Pg.298 , Pg.350 ]

See also in sourсe #XX -- [ Pg.3 , Pg.3 ]

See also in sourсe #XX -- [ Pg.2 , Pg.3 , Pg.3 , Pg.72 ]



SEARCH



PPH

© 2024 chempedia.info