Mizoroki–Heck Reaction of Unstrained Aryl Ketones via Ligand-Promoted C–C Bond Olefination
作者:Mei-Ling Wang、Hui Xu、Han-Yuan Li、Biao Ma、Zhen-Yu Wang、Xing Wang、Hui-Xiong Dai
DOI:10.1021/acs.orglett.1c00296
日期:2021.3.19
Mizoroki–Heck reaction of unstrained arylketone with acrylate/styrene is accomplished via palladium-catalyzed ligand-promoted C–C bond cleavage. Various (hetero)arylketones are compatible in the reaction, affording the alkene product in good to excellent yields. Further applications in the late-stage olefination of some drugs, natural products, and fragrance-derived arylketones demonstrate the synthetic utility
A novel ruthenium-catalyzed cyclization of ketoxime carboxylates with N,N-dimethylformamide (DMF) for the synthesis of tetrasubstituted symmetrical pyridines has been developed. A methyl carbon on DMF performed as a source of a one carbon synthon. And NaHSO3 plays a role in the reaction.