A novel chiral surfactant-type metallomicellar catalyst for asymmetric Michael addition in water
作者:Xinping Liang、Yang Gui、Kuiliang Li、Jindong Li、Zhenggen Zha、Lei Shi、Zhiyong Wang
DOI:10.1039/d0cc04410e
日期:——
amines and lipophilic groups were designed and synthesized. Using these ligands, a new chiral surfactant-type metallomicellar catalyst was developed in water, and this was identified by SEM/TEM analyses. These metallomicelles can be empolyed in asymmetricMichaeladditionreactions in water, delivering the corresponding adducts with excellent yields and enantioselectivities.
Highly Enantioselective Friedel−Crafts Reaction of Indoles with 2-EnoylPyridine 1-Oxides Catalyzed by Chiral Pyridine 2,6-Bis(5′,5′-diphenyloxazoline)−Cu(II) Complexes
作者:Pradeep K. Singh、Vinod K. Singh
DOI:10.1021/ol8016929
日期:2008.9.18
The catalytic enantioselective Friedel-Crafts reaction of indoles with 2-enoylpyridine 1-oxides has been studied in the presence of chiral pyridine 2,6-bis(5',5'-diphenyloxazoline)-Cu(II) complexes. The reaction furnished alkylated indoles in excellent yields (up to 97%) and enantioselectivities (up to 99% ee).