Abstract

This paper reports the hydroformylation of 1-butene catalyzed by RhCI(CO)(TPPTS) 2 (TPPTS: P( m-C 6H 4SO 3Na) 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]/[H 2]/[CO]=1:1:1, [1-butene]/ [ Rh]=10 400 , TOF and the regioselectivity for n-valeraldehyde were 2987 h −1 and 98%, respectively.

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