CH Bond Activation in Cations of the Type {[(2,4,6-Me3C6H2NCH2CH2)2NMe]ZrR}+ and a Simple Solution that Yields a Catalyst for the Living Polymerization of 1-Hexene
CH Bond Activation in Cations of the Type {[(2,4,6-Me3C6H2NCH2CH2)2NMe]ZrR}+ and a Simple Solution that Yields a Catalyst for the Living Polymerization of 1-Hexene
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{[(2,4,6-Me3C6H2NCH2CH2)2NMe]ZrR} 型阳离子中的 CH 键活化以及产生 1-己烯活性聚合催化剂的简单溶液
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Yann Schrodi
中科院分区：
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作者：
R. Schrock;and Peter J. Bonitatebus;Yann Schrodi
{[（MesNCH 2 CH 2）2 NMe]ZrMe}[B（C6 F5）4]和在1-己烯的聚合反应中由其形成的中间体由于在均三甲苯基取代基中的邻位甲基中的CH活化而分解。聚合反应中的中间体比{[（MesNCH 2CH 2）2NMe]ZrMe}[B（C6 F5）4]明显更容易分解。另一方面，含有[（2，6-Cl 2C 6 H3 NCH 2CH 2）2NMe]2-配体的类似阳离子络合物相对稳定，并且在氯苯中在0 °C下以严格的一级和明显的活性方式消耗1-己烯。
{[(MesNCH2CH2)2NMe]ZrMe}[B(C6F5)4] and intermediates in the polymerization reaction of 1-hexene that are formed from it decompose as a consequence of CH activation in an ortho methyl group in the mesityl substituent. The intermediates in the polymerization reaction decompose significantly more readily than does {[(MesNCH2CH2)2NMe]ZrMe}[B(C6F5)4]. On the other hand, analogous cationic complexes that contain the [(2,6-Cl2C6H3NCH2CH2)2NMe]2- ligand are relatively stable and will consume 1-hexene in a strictly first-order and apparently living manner at 0 °C in chlorobenzene.