Synthesis of Heteroarene-Fused Cyclopentadienes and Related Compounds Suitable for Metallocene Preparationстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 23 сентября 2020 г.
Аннотация:Metallocene catalysis is widely used in transformations of unsaturated organic compounds, including the bulk industrial synthesis of polyolefins. Over the last few decades, the electronic and structural properties of their η<sup>5</sup>‐coordinated ligands have been modified by introducing electron‐donating, electron‐withdrawing, and sterically hindered substituents to obtain desirable catalytic properties for the metallocenes. An efficient way to design η<sup>5</sup>‐coordinated ligands is to exploit the annelation of heterocyclic fragments with a cyclopentadiene ring. In the present review, we summarize, systematize, and analyze synthetic approaches to heterocycle‐fused cyclopentadienes suitable for metallocene catalyst preparation.