Dow Global Technolgoies LLC

Arvind Jaganathan

Philip P Fontaine

Chunming Zhang

Jerzy Klosin

Andrew J Young

Susan G Brown

Hien Q Do

Johnathan E DeLorbe

Tulaza Vaidya

Johnathan E Delorbe

Heqi Pan

The disclosure provides a procatalyst for the polymerization of ethylene and optionally one or more alpha-olefins having the structure shown in formula (I) below: wherein at least two of Y-Yand at least two of Y-Yare fluorine atoms and when only two of Y-Yand only two of Y-Yare fluorine atoms, the non-fluorine Y-Yare selected from the group consisting of H atom, alkyl groups, aryl groups, heteroaryl groups, and alkoxy groups. Also provided is a polymerization process using the procatalyst.

Polymerization process for producing ethylene based polymers

A process for preparing one or more carbazoles comprising (a) contacting one or more compounds represented by formula (1) below with diboron reagents in the presence of PdCl2(dppf) to form one or more 2,2'-dichlorobiaryl represented by formula (2) below; and (b) contacting the one or more 2,2&#x2032;-dichlorobiaryls with one or more H2N&#x2014;Y compounds, in the presence of one or more palladium containing catalytic components; thereby forming one or more carbazoles represented by formula (3) below is provided. 

Process for preparing carbazoles

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Midland, MI, United States of America

Arvind Jaganathan