METALLOCENE COMPOUND, CATALYST FOR OLEFIN POLYMER, METHOD FOR PRODUCING OLEFIN POLYMER, AND OLEFIN POLYMER
申请人:JAPAN POLYETHYLENE CORPORATION
公开号:US20160009838A1
公开(公告)日:2016-01-14
The invention provides a metallocene compound and an olefin polymerization catalyst for use for a catalyst for producing an olefin polymer having a sufficiently high molecular weight while maintaining excellent copolymerizability at a polymerization temperature and under polymerization conditions industrially advantageous in polymerization of an olefin such as ethylene or the like, and provides a method for producing nan olefin polymer using the catalyst. The metallocene compound of the present invention is represented by the following general formula [I]:
Ligand Substitution of Ru
<sup>II</sup>
–Alkylidenes to Ru(bpy)
<sub>3</sub>
<sup>2+</sup>
: Sequential Olefin Metathesis/Photoredox Catalysis
作者:Malte Gallhof、Lukas Kell、Malte Brasholz
DOI:10.1002/chem.201905694
日期:2020.2.6
Ruthenium(II) alkylidene complexes such as the Grubbs' 1st and 2nd generation catalysts undergo a ligand substitution with 2,2'-bipyridine, which readily leads to the common photoredox catalyst Ru(bpy)3 2+ . The application of this catalyst transformation in sequential olefin metathesis/photoredoxcatalysis is demonstrated by way of ring-closing metathesis (RCM)/photoredox ATRA reactions.
A strategy for the synthesis of functionalized indenes is presented. The readily available substituted phenols are used as starting materials in the reaction sequence composed of Pd-catalyzed Suzuki coupling and Ru-catalyzed ring-closing metathesis, thus representing a practical method for the controlled construction of functionalized indene derivatives. The methodology has been successfully applied
Metallocene compound, catalyst component for olefin polymerization and catalyst for olefin polymerization containing the same, and method for producing olefin polymer using catalyst for olefin polymerization
申请人:JAPAN POLYETHYLENE CORPORATION
公开号:US10995167B2
公开(公告)日:2021-05-04
The metallocene compound represented by the following general formula (1):
(the numerals and signs in the general formula (1) are as described in the description).