Ligand‐Controlled Regiodivergence for Catalytic Stereoselective Semireduction of Allenamides
作者:Mojtaba Hajiloo Shayegan、Zhong‐Yuan Li、Xin Cui
DOI:10.1002/chem.202103402
日期:2022.1.3
A palladium-catalyzed, ligand controlled regiodivergent semireduction of allenamides has been developed. This phosphine ligand-switched semireduction system has enabled an easy access to a broad scope of allylic and vinylic amides by using a single palladium catalyst. The excellent regio- and stereoselectivities of the divergent processes were achieved by the employment of monodentate Xphos and bidentate
A Transient Directing Group Strategy Enables Enantioselective Multicomponent Organofluorine Synthesis
作者:Zhonglin Liu、Lucas J. Oxtoby、Mingyu Liu、Zi-Qi Li、Van T. Tran、Yang Gao、Keary M. Engle
DOI:10.1021/jacs.1c03178
日期:2021.6.23
6-trimethylpyridinium hexafluorophosphate facilitated by a transient directing group. The synthetically enabling methodology constructs vicinal stereocenters with excellent regio-, diastereo-, and enantioselectivities, forging products that map onto bioactive compounds.