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PREPARATION OF POLYMER-SUPPORTED RCpCpTiCl_2 AND APPLICATION IN CATALYTIC ISOMERIZATION OF 1,5-HEXADIENE
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作者 QIANYanlong hongkunlun 《Chinese Journal of Reactive Polymers》 1993年第2期164-173,共10页
Polymer-supported RCpCpTiCl2(Cp=η^5-C5H4;RCp=η^5-RC5H4)have been prepared and reduced by i-C3H7MgBr in situ,then used in catalytic isomerization of 1,5-hexadiene.The isomerization of 1,5-hexadiene leads to a mixtur... Polymer-supported RCpCpTiCl2(Cp=η^5-C5H4;RCp=η^5-RC5H4)have been prepared and reduced by i-C3H7MgBr in situ,then used in catalytic isomerization of 1,5-hexadiene.The isomerization of 1,5-hexadiene leads to a mixture of cyclic and linear products.The ratio of cyclic to linear product depends on the nature of the supporter and the substituent on the cyclopentadienyl ring.The former contributes the most,for example,silica supported Cp2 TiCl2 gave cyclic-linear ratio of 99/1,while for polymer-supported Cp2TiCl2 species,linear compounds are the major products and the ratio of cyclic to linear product changes with different R groups on the cyclopentadienyl ring. 展开更多
关键词 制备 异构化作用 聚合物-支撑烷基环戊二烯基环戊二烯基二氯化钛 1 5-己二烯
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