Primary amine-metal Lewis acid bifunctional catalysts based on a simple bidentate ligand: Direct asymmetric aldol reaction
A novel class of primary amine-metal Lewis acid bifunctional catalysts based on a bidentate ligand was developed. These catalysts were highly efficient in catalyzing the direct asymmetric aldol reactions of ketones offering excellent stereoselectivity. Th
Daka, Philias,Xu, Zhenghu,Alexa, Alexandru,Wang, Hong
p. 224 - 226
(2011/03/19)
Asymmetric inverse-electron-demand hetero-Diels-Alder reaction of six-membered cyclic ketones: An enamine/metal lewis acid bifunctional approach
On demand: The first example of the title reaction involving cyclic ketones and β,γ-unsaturated α-ketoesters has been achieved using the novel enamine/metal Lewis acid bifunctional catalysis (see scheme; Tf=trifluoromethanesulfonyl). Enones with both elec
Xu, Zhenghu,Liu, Lu,Wheeler, Kraig,Wang, Hong
p. 3484 - 3488
(2011/05/03)
A three-component reaction based on a remote-group-directed dynamic kinetic aza-Michael addition: Stereoselective synthesis of imidazolidin-4-ones
(Figure Presented) In control: An α-amino amide reacted with an aldehyde and a Michael acceptor to form stable imidazolidin-4-ones with high stereoselectivity. A dynamic kinetic aza-Michael addition was discovered and applied to the three-component reacti
Xu, Zhenghu,Buechler, Tyler,Wheeler, Kraig,Wang, Hong
supporting information; experimental part
p. 2972 - 2976
(2010/07/06)
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