Title of article
A Convenient Preparative Method of Dibromoterphenyl and Bis(bromophenyl)diene Monomers Using Zirconacyclopentadienes
Author/Authors
Takahashi، Tamotsu نويسنده , , Tsai، Fu-Yu نويسنده , , Li، Yanzhong نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1999
Pages
-1172
From page
1173
To page
0
Abstract
Zirconacyclopentadienes prepared from 4,4ʹ-dibromodiphenyldiynes or 1-(4ʹ-bromophenyl)-1-alkynes reacted with dimethylacetylene dicarboxylate in the presence of CuCl afforded polyphenylene monomers which contain three benzene rings. Hydrolysis, chlorination with NCS, or allylation of the zirconacyclopentadienes gave a variety of polyphenylenedienylene monomers. Polymerization of these monomers using the system NiCl2(PPh3)2 (cat.)/Zn produced the corresponding polymers.
Keywords
Goodness of fit , Identifiability , Model diagnosis , Restricted latent class models , Parametric bootstrap
Journal title
CHEMISTRY LETTERS
Serial Year
1999
Journal title
CHEMISTRY LETTERS
Record number
27952
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