Cobalt-Catalyzed Electrophilic Amination of Aryl- and Heteroarylzinc Pivalates with <i>N</i>
-Hydroxylamine Benzoates
作者:Yi-Hung Chen、Simon Graßl、Paul Knochel
DOI:10.1002/anie.201710931
日期:2018.1.22
Aryl‐ and heteroarylzincpivalates can be aminated with O‐benzoylhydroxylamines at 25 °C within 2–4 h in the presence of 2.5–5.0 % CoCl2⋅2 LiCl to furnish the corresponding tertiary arylated or heteroarylated amines in good yields. This electrophilicamination also provides access to diarylamines and aryl(heteroaryl)amines. A new tuberculosis drug candidate (Q203) was prepared in six steps and 56 %