Catalyst components for the polymerization of olefins
申请人:Basell Poliolefine Italia S.r.l.
公开号:EP2803678A1
公开(公告)日:2014-11-19
A solid catalyst component for the polymerization of olefins comprising Mg, Ti, Cl and at least an electron donor compound which is the reaction product obtained by bringing into contact a Mg compound and a Ti compound having at least a Ti-halogen bond with an electron donor selected from specific diphenol derivatives.
CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS
申请人:BASELL POLIOLEFINE ITALIA S.R.L.
公开号:US20160115261A1
公开(公告)日:2016-04-28
A solid catalyst component for the polymerization of olefins comprising Mg, Ti, Cl and at least an electron donor compound which is the reaction product obtained by bringing into contact a Mg compound and a Ti compound having at least a Ti-halogen bond with an electron donor selected from specific diphenol derivatives.
[EN] CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS<br/>[FR] COMPOSANTS CATALYSEURS POUR LA POLYMÉRISATION D'OLÉFINES
申请人:BASELL POLIOLEFINE SRL
公开号:WO2014184171A1
公开(公告)日:2014-11-20
A solid catalyst component for the polymerization of olefins comprising Mg, Ti, Cl and at least an electron donor compound which is the reaction product obtained by bringing into contact a Mg compound and a Ti compound having at least a Ti-halogen bond with an electron donor selected from specific diphenol derivatives.
Lewis Acid Mediated Electrophilic Cyanation of 2,2′-Biphenols
作者:Wu Zhang、Wen Yang、Wanxiang Zhao
DOI:10.1021/acs.joc.0c00458
日期:2020.7.2
A Lewisacidmediated electrophilic cyanation of 2,2′-biphenols with a trifluoromethanesulfonyl (Tf) protecting group is reported. The cyanation reactions with less toxic, commercially available MeSCN as a cyanating reagent afforded a range of 3-cyan-2,2′-biphenols in moderate to high yields. The use of trifluoromethanesulfonyl (Tf) as a protecting group is crucial to the success of this transformation