Ligand-Controlled Nickel-Catalyzed Tandem Isomerization/Regiodivergent Hydroheteroarylation of α-Alkenes with Heteroarenes
作者:Sajid Imran、Wen-Hui Jin、Rui-Peng Li、Nadia Ismaeel、Hong-Mei Sun
DOI:10.1021/acs.orglett.2c03689
日期:2022.12.9
We herein describe an accessible ligand-controlled nickel-catalyzed tandem isomerization/regiodivergent hydroheteroarylation of α-alkenes with a series of heteroarenes, wherein the NHC ligand of heteroleptic Ni(II) complexes of the type Ni(NHC)[P(OEt)3]Br2 displayed significant effects on regulation. In the presence of NaOtBu, Ni(IMes)[P(OEt)3]Br2 enables C═C bond isomerization of α-alkenes over up
Tandem Isomerization and C–H Activation: Regioselective Hydroheteroarylation of Allylarenes
作者:Wei-Chih Lee、Chun-Han Wang、Yung-Huei Lin、Wei-Chun Shih、Tiow-Gan Ong
DOI:10.1021/ol402644y
日期:2013.10.18
The first Ni-promoted prototype reaction based on the tandem C-H activation of heteroarenes with alkene isomerization is demonstrated, leading to the branched hydroheteroarylation products. Simultaneously, the reaction selectivity can be chemically switched to linear adducts through Ni-Al tandem catalysis.
Cu-Catalyzed Regioselective C–H Alkylation of Benzimidazoles with Aromatic Alkenes
Herein we report a novel Cu-catalyzed regioselective C2–H alkylation of benzimidazoles with aromatic alkenes. The reaction features exclusive regioselectivity and broad substrate scope in the intermolecular alkylation of benzimidazoles with terminal and internal aromatic alkenes, constituting a modular access toward benzimidazole-containing 1,1-di(hetero)aryl alkanes. The intramolecular C2–H alkylation