Intermediates for the synthesis of bisphosphine compounds
    5.
    发明授权
    Intermediates for the synthesis of bisphosphine compounds 失效
    用于合成双膦化合物的中间体

    公开(公告)号:US5739360A

    公开(公告)日:1998-04-14

    申请号:US714747

    申请日:1996-09-16

    CPC分类号: C07F9/65517

    摘要: The invention relates to novel bisphosphonates and to processes for their preparation and for their resolution into the enantiomers. The bisphosphonates according to the invention are valuable intermediates for the preparation of bisphosphine compounds, especially chiral bisphosphine ligands. These in turn are constituents of transition metal complexes which are used as catalysts inter alia in asymmetric hydrogenation. The novel bisphosphonates have the general formula (I) ##STR1## in which R.sup.1 is linear or branched alkyl having up to 6 carbon atoms, aryl or aralkyl, each of which can optionally be substituted, or two radicals R.sup.1 together are a bridging hydrocarbon radical having up to 6 carbon atoms, and can exist in the form of their racemates or as enantiomers.

    摘要翻译: 本发明涉及新的双膦酸盐及其制备方法及其分解成对映体。 根据本发明的双膦酸盐是制备双膦化合物,特别是手性双膦配体的有价值的中间体。 这些又是作为催化剂的过渡金属络合物的成分,特别是用于不对称氢化。 新型二膦酸盐具有通式(I)其中R 1为具有至多6个碳原子的直链或支链烷基,芳基或芳烷基,其中每一个可任选被取代,或两个基团R 1一起为 具有至多6个碳原子的桥连烃基,并且可以以其外消旋体的形式存在或作为对映异构体存在。

    Ligands and catalyst systems for hydroformylation processes
    9.
    发明授权
    Ligands and catalyst systems for hydroformylation processes 有权
    用于加氢甲酰化过程的配体和催化剂体系

    公开(公告)号:US08791305B2

    公开(公告)日:2014-07-29

    申请号:US14122594

    申请日:2012-05-25

    申请人: Dieter Arlt

    发明人: Dieter Arlt

    摘要: 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).

    摘要翻译: 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)。

    LIGANDS AND CATALYST SYSTEMS FOR HYDROFORMYLATION PROCESSES
    10.
    发明申请
    LIGANDS AND CATALYST SYSTEMS FOR HYDROFORMYLATION PROCESSES 有权
    氢化方法的配体和催化剂体系

    公开(公告)号:US20140114090A1

    公开(公告)日:2014-04-24

    申请号:US14122594

    申请日:2012-05-25

    申请人: Dieter Arlt

    发明人: Dieter Arlt

    IPC分类号: B01J31/24 C07C45/50

    摘要: 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).

    摘要翻译: 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-1,2,4-四[​​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和1,000之间的整数)。