[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] PREPARATION OF SURFACTANTS VIA CROSS-METATHESIS<br/>[FR] PRÉPARATION DE TENSIOACTIFS PAR MÉTATHÈSE CROISÉE
申请人:MATERIA INC
公开号:WO2015126462A1
公开(公告)日:2015-08-27
The present invention relates to compositions comprising 2-phenyl linear alkene benzenes or 2-phenyl linear alkene benzene sulfonates or 2-phenyl linear alkylbenzenes or 2-phenyl linear alkylbenzene sulfonates; where the benzene ring is optionally substituted with one or more groups designated R *, where R * is defined herein and to methods for making the same. This invention also relates to compositions, methods of making, use of, and articles of manufacuture comprising 2-ethoxylated hydroxymethylphenyl linear alkyl benzenes or 2-propoxylated hydroxymethylphenyl linear alkyl benzenes.
[EN] USE OF SOLUBLE METAL SALTS IN METATHESIS REACTIONS<br/>[FR] UTILISATION DE SELS MÉTALLIQUES SOLUBLES DANS DES RÉACTIONS DE MÉTATHÈSE
申请人:MATERIA INC
公开号:WO2014152309A1
公开(公告)日:2014-09-25
The present invention describes the use of soluble metal salts to reduce impurities and metathesis catalysts poisons from olefinic feedstocks to improve olefin metathesis efficiency. The soluble metal salts were added to the olefinic feedstocks to prevent peroxides and catalyst poisons from inhibiting the metathesis catalyst. The soluble metal salts remain in the olefinic feedstocks and are used without further purification in the olefin metathesis reactions. The key to this invention is the soluble metal salt compounds do not inhibit the olefin metathesis catalysts but unexpectedly increase olefin metathesis catalyst efficiency while prior art heterogeneous metal complexes sequester the olefin metathesis catalyst, preventing olefin metathesis.
Macrocyclic lactones, ketones, and ethers can be obtained in the High-Concentration Ring-Closing Metathesis (HC-RCM) reaction in high yield and selectivity at concentrations 40 to 380 times higher than those typically used by organic chemists for similar macrocyclizations. The new method consists of using tailored ruthenium catalysts together with applying vacuum to distill off the macrocyclic product