Novel amphiphilic diphosphines: synthesis, rhodium complexes, use in hydroformylation and rhodium recycling

A Buhling, JW Elgersma, S Nkrumah…

Index: Buhling, Armin; Elgersma, Jaap W.; Nkrumah, Steve; Kamer, Paul C. J.; Van Leeuwen, Piet W. N. M. Journal of the Chemical Society - Dalton Transactions, 1996 , # 10 p. 2143 - 2154

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Citation Number: 34

Abstract

For the rhodium-catalysed hydroformylation of higher alkenes the novel amphiphilic diphosphines 2, 2′-bis [phenyl (3-pyridyl) phosphinomethyl]-1, 1′-biphenyl (L1), 2, 2′-bis (diphenylphosphinomethyl)-3, 3′-bipyridine (L2), 2, 2′-bis [phenyl (3-pyridyl) phosphinomethyl]-3, 3′-bipyridine (L3) and 2, 2′-bis {[4-(diethylaminomethyl)-phenyl] phenylphosphinomethyl}-1, 1′-biphenyl (L4) have been synthesised. With oct-1-ene (80° ...