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    • 10. 发明授权
    • Ligands and catalyst systems for hydroformylation processes
    • 用于加氢甲酰化过程的配体和催化剂体系
    • US08791305B2
    • 2014-07-29
    • US14122594
    • 2012-05-25
    • Dieter Arlt
    • Dieter Arlt
    • C07C45/00C07C27/04B01J31/00B01J27/185
    • C07C45/505B01J31/2208B01J31/2414C07C43/135C07C43/1788C07C45/50C07C2531/24C07C2601/04C07F9/5027C07F15/0073C07F15/008C07C47/19
    • The present invention relates to ligands and catalyst systems for the hydroformylation of short and long chain olefins, preferably for the hydroformylation of ally alcohol producing 4-hydroxybutyraldehyde. The ligands disclosed herein are all-trans phosphinomethyl-cyclobutane ligands, such as, for example, all-trans-1,2,3,4-tetra[bis-(3,5-xylyl)phosphinomethyl]-cyclobutane. The catalyst systems comprise these all-trans phosphinomethyl-cyclobutane ligands in combination with an organometallic rhodium complex such as, e.g., (acctylacetonato)-dicarbonyl-rhodium (I). The ligands and catalyst systems of the present invention may be employed in the hydroformylation of olefins, in particular in the hydroformylation of allylalcohol, and provide improved selectivity and high reaction yields. wherein R1 is alkyl, preferably methyl, ethyl or propyl, R2 is H or an alkoxy group, R3 and R4, independently of one another, CH2OR1, CH2O-aralkyl, CH2OH,CH2—[P(3,5-R1,R1-4-R2-phenyl)2] or CH2O—(CH2—CH2—O)m—H (with m being an integer between 1 and 1.000).
    • 本发明涉及用于短链和长链烯烃加氢甲酰基化的配体和催化剂体系,优选用于产生4-羟基丁醛的烯丙醇的加氢甲酰化。 本文公开的配体是全反式膦酰基甲基 - 环丁烷配体,例如全反式-1,2,3,4-四[​​双(3,5-二甲苯基)膦酰基甲基] - 环丁烷。 催化剂体系包括这些全反式膦酰基甲基 - 环丁烷配体与有机金属铑络合物,例如(丙酰丙酮) - 二羰基 - 铑(I)的组合。 本发明的配体和催化剂体系可以用于烯烃的加氢甲酰化,特别是在烯丙醇的加氢甲酰化中,提供改进的选择性和高的反应产率。 其中R1是烷基,优选甲基,乙基或丙基,R2是H或烷氧基,R3和R4彼此独立地是CH2OR1,CH2O-芳烷基,CH2OH,CH2- [P(3,5-R1,R1- 4-R 2 - 苯基)2]或CH 2 O-(CH 2 -CH 2 -O)m -H(m为1至1.000之间的整数)。