Yttrium‐Catalyzed Addition of Benzylic CH Bonds of Alkyl Pyridines to Olefins

Cationic half-sandwich yttrium alkyl complexes catalyze the ortho-selective benzylic CH addition of dialkyl pyridines to various olefins, such as ethylene, 1-hexene, styrenes, and 1,3-conjugated dienes, to afford new alkylated and allylated pyridine derivatives (see scheme; Cp=C5Me5). A cationic half-sandwich yttrium picolyl species, such as [CpY(2-CH2-6-CH3C5H3N)]+, has been confirmed to be a key active species in this transformation. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.