【摘 要】
：
A novel thermoregulated phosphine ligand Ph2P(CH2CH2O)nCH3 (n = 22) was synthesized and used for the Rh-catalyzed hydroformylation of mixed C11-12 olefins in aq
【机 构】
：
State Key Laboratory of Fine Chemicals
论文部分内容阅读
A novel thermoregulated phosphine ligand Ph2P(CH2CH2O)nCH3 (n = 22) was synthesized and used for the Rh-catalyzed hydroformylation of mixed C11-12 olefins in aqueous/organic biphasie system. Under the optimized conditions, pressure = 5 Mpa(H2:CO = 1:1 ), phosphine/Rh = 13 (molar ratio), reaction time = 6 h and temperature = 130℃, the conversion of C11-12 olefins and the yield of aldehyde are 99% and 94%, respectively. The catalyst retained in aqueous phase can be easily separated from the product-containing organic phase by simple phase separation and the catalytic activity remains almost constant after four consecutive cycles.
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