Palladium Catalyzed Enantioselective Hayashi–Miyaura Reaction for Pharmaceutically Important 4-Aryl-3,4-dihydrocoumarins
作者:Jixing Lai、Chen Yang、René Csuk、Baoan Song、Shengkun Li
DOI:10.1021/acs.orglett.1c04366
日期:2022.2.18
The first palladium-catalyzed asymmetric addition of arylboronic acids to coumarins was successfully established, providing a straightforward asymmetric approach to achieving pharmaceutically important 4-aryl-3,4-dihydrocoumarins. This methodology features easily accessible and bench-stable ligands, a wide substrate scope, mild conditions, and accommodation of electron-withdrawing arylboronic acids
Ruthenium‐Catalysed Asymmetric Intramolecular Isomerization/Esterification Reaction: Direct Synthesis of Chiral Dihydrocoumarins
作者:Lingzi Zhao、Xuchao Wang、Qing Qiang、Xingwei Zhao、Feipeng Liu、Shenci Lu、Zi‐Qiang Rong
DOI:10.1002/cjoc.202400084
日期:2024.8.15
An asymmetric isomerization/intramolecular coupling reaction of allylic alcohols to synthesize chiral dihydrocoumarins was successfully accomplished through ruthenium catalysis. This method demonstrates a wide substrate applicability, excellent tolerance for various functional groups, and good enantioselectivities (up to 90% ee). It provides a convenient pathway to produce a diverse range of structurally