Water-soluble-phosphines-assisted cobalt separation in cobalt-catalyzed hydroformylation

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • László T. Mika
  • László Orha
  • Eddie Van Driessche
  • Ron Garton
  • Katalin Zih-Perényi

Detail(s)

Original languageEnglish
Pages (from-to)5326-5332
Journal / PublicationOrganometallics
Volume32
Issue number19
Publication statusPublished - 14 Oct 2013

Abstract

The hydroformylation of octene-1 and the removal of Co2(CO) 8 and HCo(CO)4 from the reaction products including commercial C9 OXO-product were studied under biphasic conditions using an aqueous solution of different electron-donating sulfonated phosphine R nP(C6H4-m-SO3Na)2 (n = 0, 1, 2; R = Me, Bu, Cp) ligands. Depending on the electronic and steric properties of the phosphines, 6-70 ppm residual cobalt concentrations could be achieved in the organic phase under 10 bar of CO/H2 (1:1) at 75 C. The formation of several water-soluble-phosphine-substituted cobalt carbonyl species including Co2(CO)6(TPPTS)2, HCo(CO)3(TPPTS), HCo(CO)2(TPPTS)2, and [Co(CO)3(TPPTS)2]+[Co(CO)4] - were identified and monitored by in situ IR and NMR spectroscopy. © 2013 American Chemical Society.

Citation Format(s)

Water-soluble-phosphines-assisted cobalt separation in cobalt-catalyzed hydroformylation. / Mika, László T.; Orha, László; Van Driessche, Eddie et al.
In: Organometallics, Vol. 32, No. 19, 14.10.2013, p. 5326-5332.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review