Nickel(II)-Catalyzed Addition of Aryl-, Alkenyl-, and Alkylboronic Acids to Alkenylazaarenes
作者:Xing-Yu Liu、Yun-Xuan Tan、Xin Wang、Hao Xu、Yu-Hui Wang、Ping Tian、Guo-Qiang Lin
DOI:10.1021/acs.orglett.0c01425
日期:2020.5.15
A nickel(II)-catalyzedaddition of aryl-, alkenyl-, and alkylboronic acids to alkenylazaarenes was presented. This reaction exhibited high efficiency (up to 93% yield), a broad substrate scope (seven types of heterocycles), and good functional group compatibility. The resulting products can be further transformed to many useful building blocks. Finally, the preliminary studies suggested that the adjacent
Coordination‐Controlled Nickel‐Catalyzed Benzylic Allylation of Unactivated Electron‐Deficient Heterocycles
作者:Pengpeng Zhang、Jin Wang、Zoe R. Robertson、Timothy R. Newhouse
DOI:10.1002/anie.202200602
日期:2022.5.23
A nickel-catalyzed benzylic allylation and benzylation of 14 types of unactivated heterocyclic aromatic compounds is described. The selective deprotonation of benzylic sites is hypothesized to be controlled by the original coordination of a heterocyclic nitrogen to Zn(TMP)2. In addition to the pro-nucleophiles, readily available bromide and chloride electrophiles could be used.