Separation of diastereoisomers
    6.
    发明申请
    Separation of diastereoisomers 有权
    非对映异构体的分离

    公开(公告)号:US20050171379A1

    公开(公告)日:2005-08-04

    申请号:US10499273

    申请日:2002-12-20

    CPC分类号: C07B57/00

    摘要: Process for modifying the relative ratios of the components of a liquid starting mixture of specific diastereoisomers, containing at least two asymmetric carbon atoms comprising contacting said liquid mixture with a Lewis acid compound capable of co-ordinating said specific diastereoisomers and subjecting the resulting mixture to conditions such that a reaction product, having a molar ratio between its diastereoisomeric components different from the corresponding molar ratio in the said liquid starting mixture, becomes separated from the said liquid mixture, said process being carried out using an amount of said Lewis acid not enough to co-ordinate the total amount of the diastereoisomeric components of the liquid starting mixture. This method shows an excellent balance of efficiency and easiness of procedure that cannot be reached with the physical methods of diastereoisomers separation known in the art.

    摘要翻译: 用于改变含有至少两个不对称碳原子的特定非对映异构体的液体起始混合物的组分的相对比例的方法,包括使所述液体混合物与能够协调所述特定非对映异构体的路易斯酸化合物接触,并将所得混合物进行条件 使得具有与所述液体起始混合物中的相应摩尔比不同的非对映异构体的摩尔比的反应产物与所述液体混合物分离,所述方法使用一定量的所述路易斯酸进行,所述量不足以 统计液体起始混合物的非对映异构体组分的总量。 该方法显示出与本领域已知的非对映异构体分离的物理方法无法达到的效率和程序容易性的极好的平衡。

    Process for preparing alkylidene substituted succinic acid esters
    7.
    发明授权
    Process for preparing alkylidene substituted succinic acid esters 有权
    制备亚烷基取代的琥珀酸酯的方法

    公开(公告)号:US06914153B2

    公开(公告)日:2005-07-05

    申请号:US10343884

    申请日:2002-06-04

    摘要: A process for the preparation of alkylidene substituted succinates comprising a step (a) in which is carried out the reaction of a carbonilic compound, a succinic and a base in a reaction medium and a step (b) in which the alkylidene substituted product obtained in (a) is esterified, characterized in that the succinic ester is used in a molar amount substantially equal to, or lower than, the amount of compound carbonilic compound, (ii) the base is used in a molar amount substantially equal to the succinic ester and is selected from metal hydrides and metal and alkoxides, and (iii) the reaction medium comprises an aprotic liquid medium or a protic liquid medium having a Ka, measured in water, lower than that of iPrOH.

    摘要翻译: 一种制备亚烷基取代的琥珀酸盐的方法,包括步骤(a),其中在反应介质中进行碳酸化合物,琥珀酸和碱的反应,和步骤(b),其中获得的亚烷基取代的产物 (a)被酯化,其特征在于所述琥珀酸酯的用量基本上等于或低于化合物碳化合物的量,(ii)碱的用量基本上等于琥珀酸酯 并且选自金属氢化物和金属和醇盐,和(iii)反应介质包含非质子液体介质或具有低于iPrOH的Ka测量的Ka的质子液体介质。

    Components and catalysts for the polymerization of olefins
    8.
    发明授权
    Components and catalysts for the polymerization of olefins 有权
    用于烯烃聚合的组分和催化剂

    公开(公告)号:US06313238B1

    公开(公告)日:2001-11-06

    申请号:US09437879

    申请日:1999-11-10

    IPC分类号: C08F4649

    CPC分类号: C08F10/00 C08F4/651

    摘要: The present invention relates to a solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, comprising a titanium compound, having at least a Ti-halogen bond and an electron donor compound supported on a Mg halide, in which said electron donor compound is selected from esters of malonic acids of formula (I): wherein R1 is a C5-C20 linear or branched alkyl, a C5-C20 cycloalkyl, a C7-C20 arylalkyl or alkylaryl group; R2 and R3, equal to or different from each other, are C1-C3 alkyl, cycloalkyl. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give high yields and polymers having high insolubility in xylene.

    摘要翻译: 本发明涉及一种用于烯烃CH 2 = CHR的聚合的固体催化剂组分,其中R是氢或具有1-12个碳原子的烃基,其包含至少具有Ti-卤素键的钛化合物和电子给体 负载在卤化镁上的化合物,其中所述电子给体化合物选自式(I)的丙二酸的酯:其中R1是C5-C20直链或支链烷基,C5-C20环烷基,C7-C20芳烷基或 烷基芳基 R2和R3彼此相同或不同,为C1-C3烷基,环烷基。 当用于烯烃聚合,特别是丙烯时,所述催化剂组分能够产生高产率和在二甲苯中具有高不溶性的聚合物。

    Separation of diastereoisomers
    10.
    发明授权
    Separation of diastereoisomers 有权
    非对映异构体的分离

    公开(公告)号:US07067690B2

    公开(公告)日:2006-06-27

    申请号:US10499273

    申请日:2002-12-20

    IPC分类号: C07C69/34

    CPC分类号: C07B57/00

    摘要: Process for modifying the relative ratios of the components of a liquid starting mixture of specific diastereoisomers, containing at least two asymmetric carbon atoms comprising contacting said liquid mixture with a Lewis acid compound capable of co-ordinating a compound having at least two Lewis basic functionalities and subjecting the resulting mixture to conditions such that a reaction product, having a molar ratio between its diastereoisomeric components different from the corresponding molar ratio in the said liquid starting mixture, becomes separated from the said liquid mixture, said process being carried out using an amount of said Lewis acid not enough to co-ordinate the total amount of the diastereoisomeric components of the liquid starting mixture.This method shows an excellent balance of efficiency and easiness of procedure that cannot be reached with the physical methods of diastereoisomers separation known in the art.

    摘要翻译: 用于改变含有至少两个不对称碳原子的特定非对映异构体的液体起始混合物的组分的相对比例的方法,包括使所述液体混合物与能够协调具有至少两个路易斯碱性官能团的化合物的路易斯酸化合物和 对所得混合物进行条件使得具有与所述液体起始混合物中的相应摩尔比不同的非对映异构体成分之间的摩尔比与所述液体混合物分离的反应产物与所述液体混合物分离,所述方法使用 所述路易斯酸不足以协调液体起始混合物的非对映异构体的总量。 该方法显示出与本领域已知的非对映异构体分离的物理方法无法达到的效率和程序容易性的极好的平衡。