Selective Heck reaction of electron-rich aryl bromides with cyclic alkenones
作者:Tarak Nath Gowala、Jagadish Pabba
DOI:10.1016/j.tetlet.2015.02.045
日期:2015.4
A simple and efficient protocol for the Heck reaction of cyclic alkenones with electron-rich aryl bromides has been developed. A ligand combination of X-Phos and tri-tert-butylphosphonium hydrogen tetrafluorborate in the presence of Pd(PPh3)(2)Cl-2 and Na2CO3 in DMSO was found to be efficient and selective for electron-rich aryl bromides with high substrate scope for cyclic alkenones. (C) 2015 Elsevier Ltd. All rights reserved.
WO2020086533A5
申请人:——
公开号:WO2020086533A5
公开(公告)日:2023-06-22
Nickel-catalyzed cross-coupling of β-carbonyl alkenyl pivalates with arylzinc chlorides
作者:Wen-Jing Pan、Zhong-Xia Wang
DOI:10.1039/c7ob02947k
日期:——
The nickel-catalyzed cross-coupling reaction of β-carbonyl alkenyl pivalates with arylzinc reagents generates 3-aryl-substituted α,β-unsaturated carbonyl compounds via C–O bond cleavage. The reaction features mild reaction conditions, a wide scope of substrates, and good functional group tolerance.