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An effective diphosphoramidite rhodium catalyst for selective hydroformylation of 1-octene
Catalysis Communications ( IF 3.7 ) Pub Date : 2018-07-04 , DOI: 10.1016/j.catcom.2018.07.004
Dario Drommi , Carmela Grazia Arena

A very efficient and highly selective rhodium catalyst with a C2-symmetric BINOL-derived diphosphoramidite ligand for hydroformylation of 1-octene has been developed. At mild conditions (50 °C and 10 bar H2/CO) a very active rhodium catalyst has been obtained which produces over 99% of aldehydes with 98.2% n-regioselectivity. The spectroscopic characterization of the hydridorhodium catalytically active species showed that the diphosphoramidite ligand coordinates bis-equatorially in the trigonal bipyramidal rhodium complex, which coupled with its π-acceptor capacity might account for the high catalyst performance.



中文翻译:

一种有效的二亚磷酰胺铑催化剂,用于1-辛烯的选择性加氢甲酰化

已经开发了具有C 2对称的BINOL衍生的二亚磷酰胺基配体的非常有效和高度选择性的铑催化剂,用于1-辛烯的加氢甲酰化。在温和的条件下(50°C和10 bar H 2 / CO),获得了一种非常活泼的铑催化剂,该催化剂可生产出99%以上的醛,n-区域选择性为98.2%。氢铑催化活性物质的光谱表征表明,双亚磷酰胺配体在三角双锥体铑络合物中双赤道配位,再加上其π-受体容量可能说明了高催化剂性能。

更新日期:2018-07-04
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