作者:Heng Zhang、Rong-Bin Hu、Xiao-Yu Zhang、Shi-Xia Li、Shang-Dong Yang
DOI:10.1039/c4cc01238k
日期:——
A novel and efficient Pd-catalyzed C–H acetoxylation is described. The approach uses R2(O)P as a directing group to synthesize various substituted 2′-phosphoryl biphenyl-2-OAc compounds.
Enantioselective Synthesis of Atropisomeric Vinyl Arene Compounds by Palladium Catalysis: A Carbene Strategy
作者:Jia Feng、Bin Li、Yun He、Zhenhua Gu
DOI:10.1002/anie.201509571
日期:2016.2.5
An efficient palladium‐catalyzed asymmetric synthesis of axially chiral vinylarenes from aryl bromides and hydrazones is reported. The products were easily oxidized to axially chiral biaryl compounds, and the phosphine oxides were readily reduced to phosphine ligands.
palladium/WJ-Phos-catalyzed Suzuki–Miyauracoupling reaction for efficient construction of axially chiral biaryl monophosphine oxides was developed. A series of axially chiral biaryl monophosphine oxides were obtained in good yields and with high enantioselectivities. The practicability of this reaction was validated in the straightforward synthesis of axially chiral biaryl monophosphine ligand and demonstrated