Ni-Catalyzed Asymmetric Hydrogenation of α-Substituted α,β-Unsaturated Phosphine Oxides/Phosphonates/Phosphoric Acids.
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DOI: 10.1021/acs.orglett.2c04105
Abstract: Efficient Ni/(S,S)-Ph-BPE-catalyzed asymmetric hydrogenation of α-substituted α,β-unsaturated phosphine oxides/phosphonates/phosphoric acids has been successfully developed, and a wide range of chiral α-substituted phosphines hydrogenation products were obtained in generally high yields with excellent enantioselective control (92%-99%… read more here.
Keywords: hydrogenation; asymmetric hydrogenation; hydrogenation substituted; catalyzed asymmetric ... See more keywords
Stereoselective organocatalytic sulfa-Michael reactions of aryl substituted α,β-unsaturated N-acyl pyrazoles
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DOI: 10.1039/c8qo00357b
Abstract: The asymmetric Michael addition of aryl thiols and thioacetic acid to challenging β- or α,β-aryl substituted α,β-unsaturated N-acyl pyrazoles catalysed by bifunctional organocatalysts has been investigated. The corresponding sulfide derivatives are obtained under mild and… read more here.
Keywords: unsaturated acyl; aryl substituted; michael; acyl pyrazoles ... See more keywords