Hydroformylation of 1-butene catalyzed by water-soluble Rh-BISBIS complex in aqueous two-phase catalytic system Original Research Article

This paper reports the hydroformylation of 1-butene catalyzed by RhCI(CO)(TPPTS)2 (TPPTS: P(m-C6H4SO3Na)3) and BISBIS (sodium salt of sulfonated 2,2′-bis(diphenylphosphinomethyl)-1,1′-biphenyl) in aqueous/organic two-phase catalytic system. The effects of reaction parameters on the catalytic activity and regioselectivity were investigated under the optimum reaction conditions: 130 °C, 2.5 MPa (syngas pressure), [BISBIS]/[Rh]=5, [1-butene]/[H2]/[CO]=1:1:1, [1-butene]/[Rh]=10 400, TOF and the regioselectivity for n-valeraldehyde were 2987 h−1 and 98%, respectively.