Cobalt-Catalyzed Preparation of N-Heterocyclic Organozinc Reagents from the Corresponding Heteroaryl Chlorides
作者:Paul Knochel、Alexander Kremsmair、Simon Graßl、Christoph J. B. Seifert、Edouard Godineau
DOI:10.1055/a-1534-0624
日期:2021.11
Various substituted and unsubstituted N-heteroaryl chlorides have been converted into their corresponding organozinc species using zinc dust in the presence of zinc pivalate and 10% CoCl2 in benzonitrile at 25 °C. The resulting heteroarylzinc reagents were obtained in 43–98% yield within 9–48 h and reacted with a broad range of electrophiles, leading to the functionalized heteroarenes.