Bifunctional Organocatalysts for the Enantioselective Synthesis of Axially Chiral Isoquinoline <i>N</i>-Oxides
作者:Ryota Miyaji、Keisuke Asano、Seijiro Matsubara
DOI:10.1021/jacs.5b04151
日期:2015.6.3
Bifunctional catalysts bearing amino and urea functional groups have been applied for a novel, highly enantioselective synthesis of axially chiral isoquinoline N-oxides, which are promising chiral ligands or organocatalysts in organic synthesis. This is the first example of highly enantioselective synthesis of axially chiral biaryls by bifunctional organocatalysts. Good-to-excellent enantioselectivities were obtained with a range of substrates.
Palladium-catalyzed directing group-assisted C8-triflation of naphthalenes
作者:Zhi-Wei Yang、Qi Zhang、Yuan-Ye Jiang、Lei Li、Bin Xiao、Yao Fu
DOI:10.1039/c6cc01732k
日期:——
The transition-metal-catalyzed direct triflation of naphthyl amides and naphthylketones has been accomplished for the first time.
过渡金属催化的萘酰胺和萘酮的直接三氟甲磺酸酯化已首次实现。
Bifunctional organocatalysts for the asymmetric synthesis of axially chiral benzamides
Bifunctionalorganocatalysts bearing amino and urea functional groups in a chiral molecular skeleton were applied to the enantioselective synthesis of axially chiral benzamides via aromatic electrophilic bromination. The results demonstrate the versatility of bifunctionalorganocatalysts for the enantioselective construction of axially chiral compounds. Moderate to good enantioselectivities were afforded