[EN] METHOD OF CYCLIC COMPOUNDS PRODUCTION IN OLEFINE METATHESIS REACTION AND USE OF RUTHENIUM CATALYSTS IN PRODUCTION OF CYCLIC OLEFINS IN OLEFINE METATHESIS REACTION<br/>[FR] PROCÉDÉ DE PRODUCTION DE COMPOSÉS CYCLIQUES DANS UNE RÉACTION DE MÉTATHÈSE D'OLÉFINES ET UTILISATION DE CATALYSEURS AU RUTHÉNIUM DANS LA PRODUCTION D'OLÉFINES CYCLIQUES DANS UNE RÉACTION DE MÉTATHÈSE D'OLÉFINES
申请人:UNIV WARSZAWSKI
公开号:WO2018197963A1
公开(公告)日:2018-11-01
The invention relates to a method for the preparation of cyclic compounds in the metathesis of olefins from acyclic dienes comprising terminal and/or non-terminal C=C double bonds; the invention also relates to the use of homogeneous ruthenium complexes and homogeneous ruthenium complexes deposited on a solid support as catalysts and/or pre-catalysts for the preparation of cyclic olefins in olefin metathesis reactions. Formula (I)
Continuous Flow
<i>Z</i>
‐Stereoselective Olefin Metathesis: Development and Applications in the Synthesis of Pheromones and Macrocyclic Odorant Molecules**
作者:Jennifer Morvan、Tom McBride、Idriss Curbet、Sophie Colombel‐Rouen、Thierry Roisnel、Christophe Crévisy、Duncan L. Browne、Marc Mauduit
DOI:10.1002/anie.202106410
日期:2021.9
The first continuous flow Z-selective olefinmetathesis process is reported. Key to realizing this process was the adequate choice of stereoselective catalysts combined with the design of an appropriate continuous reactor setup. The designed continuous process permits various self-, cross- and macro-ring-closing-metathesis reactions, delivering products in high selectivity and short residence times
报道了第一个连续流动 Z-选择性烯烃复分解过程。Key to realizing this process was the adequate choice of stereoselective catalysts combined with the design of an appropriate continuous reactor setup. 设计的连续工艺允许各种自、交叉和大环闭环复分解反应,以高选择性和短停留时间提供产品。该技术通过直接应用于一系列信息素和大环气味分子的制备来举例说明,并在一个伸缩的 Z 选择性交叉复分解/迪克曼环化序列中达到高潮,以获取 ( Z )-Civetone,并结合一系列连续搅拌罐反应堆。
[EN] IMPROVED OLEFIN METATHESIS CATALYSTS<br/>[FR] CATALYSEURS DE MÉTATHÈSE D'OLÉFINES AMÉLIORÉS
申请人:BERGEN TEKNOLOGIOVERFØRING AS
公开号:WO2017009232A1
公开(公告)日:2017-01-19
The present invention refers to novel ruthenium-based catalysts for olefin metathesis reactions, particularly to fast initiating catalysts having stereoselective properties. In olefin metathesis reactions, the disclosed catalysts provide a high catalytic activity combined with the capability to generate higher yields of the olefin metathesis product.
Pyridine-Stabilized Fast-Initiating Ruthenium Monothiolate Catalysts for <i>Z</i>-Selective Olefin Metathesis
作者:Giovanni Occhipinti、Karl W. Törnroos、Vidar R. Jensen
DOI:10.1021/acs.organomet.7b00441
日期:2017.9.11
Pyridine as a stabilizing donor ligand drastically improves the performance of ruthenium monothiolate catalysts for olefin metathesis in comparison with previous versions based on a stabilizing benzylidene ether ligand. The new pyridine-stabilized ruthenium alkylidenes undergo fast initiation and reach appreciable yields combined with moderate to high Z selectivity in self-metathesis of terminal olefins
Stereoselective Access to <i>Z</i> and <i>E</i> Macrocycles by Ruthenium-Catalyzed <i>Z</i>-Selective Ring-Closing Metathesis and Ethenolysis
作者:Vanessa M. Marx、Myles B. Herbert、Benjamin K. Keitz、Robert H. Grubbs
DOI:10.1021/ja311241q
日期:2013.1.9
selectivity for Z macrocycles is consistently high for a diverse set of substrates with a variety of functional groups and ring sizes. The same catalyst was also employed for the Z-selective ethenolysis of a mixture of E and Z macrocycles, providing the pure E isomer. Notably, an ethylene pressure of only 1 atm was required. These methodologies were successfully applied to the construction of several olfactory
描述了使用基于钌的复分解催化剂的 Z 选择性大环化的第一份报告。对于具有各种官能团和环大小的多种底物,Z 大环的选择性始终很高。同样的催化剂也用于 E 和 Z 大环混合物的 Z 选择性乙烯醇解,提供纯 E 异构体。值得注意的是,只需要 1 个大气压的乙烯压力。这些方法已成功应用于几种嗅觉大环化合物的构建以及细胞毒性生物碱莫托泊明 C 的正式全合成。