[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)
Production method of cyclic compounds by olefin metathesis reaction and use of ruthenium catalysts in production of cyclic olefines by olefin metathesis reaction
申请人:UNIWERSYTET WARSZAWSKI
公开号:US20200140470A1
公开(公告)日:2020-05-07
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.
At Long Last: Olefin Metathesis Macrocyclization at High Concentration
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
Thirteen‐ to eighteen‐membered lactones were synthesized by ring‐closing olefin‐metathesis reactions of bis‐olefins with heterogeneous Grubbs‐supported ionic‐liquid catalysts (SILCs), in which homogeneous Grubbs catalysts were confined in pores of alumina with the aid of an ionic liquid. The Grubbs‐SILCs exhibited higher catalyticperformance than their homogeneous counterparts and could be repeatedly