Chiral Frustrated Lewis Pairs Catalyzed Highly Enantioselective Hydrosilylations of 1,2-Dicarbonyl Compounds
A highly enantioselective hydrosilylation of 1,2-dicarbonyl compounds was successfully realized for the first time utilizing the combination of tricyclohexylphosphine and chiral alkenylborane derived in situ from diyne as a frustrated Lewis pair catalyst. A variety of optically active α-hydroxy ketones and esters were obtained in 52-98% yields with 86-99% ee's.
Ren, Xiaoyu,Du, Haifeng
supporting information
p. 810 - 813
(2016/02/09)
Rhodium(iii)-catalyzed C-H allylation of electron-deficient alkenes with allyl acetates
Rhodium-catalyzed C-H allylation of acrylamides with allyl acetates is reported. The use of weakly coordinating directing group resulted in high reaction efficiency, broad functionality tolerance and excellent γ-selectivity, which opens a new synthetic pathway for the access of 1,4-diene skeletons.
Feng, Chao,Feng, Daming,Loh, Teck-Peng
supporting information
p. 342 - 345
(2015/01/09)
Directing-group-assisted copper-catalyzed olefinic trifluoromethylation of electron-deficient alkenes
Assistance provided: The directing group in the title reaction not only activates the substrates but also allows the stereospecific formation of cis-trifluoromethylated products. The reaction is operationally simple and tolerates a wide variety of functional groups, thus providing an efficient method for the stereoselective synthesis of β-CF3-functionalized acrylamide derivatives. Copyright
Feng, Chao,Loh, Teck-Peng
supporting information
p. 122414 - 122417
(2013/12/04)
Chiral N-heterocyclic carbene ligands for asymmetric catalytic oxindole synthesis
The Pd-catalysed asymmetric intramolecular α-arylation of amide enolates containing heteroatom substituents gives chiral 3-alkoxy or 3-aminooxindoles in high yield and with enantioselectivities up to 97% ee when a new chiral N-heterocyclic carbene ligand is used. The Royal Society of Chemistry.
Jia, Yi-Xia,Hillgren, J. Mikael,Watson, Emma L.,Marsden, Stephen P.,Kuendig, E. Peter
supporting information; scheme or table
p. 4040 - 4042
(2009/03/11)
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