Catalytic Asymmetric Synthesis of a New Class of CyPHOX Ligands
Tetrahedron(2019)
摘要
Four newly designed CyPHOX ligands with chiral cyclohexane scaffold replacing the previous planar aryl group of PHOX ligands, were efficiently prepared. The synthesis features a kinetically controlled asymmetric phos-Michael reactions of trisubstituted cyclic carboxylates, which is quite simple, reliable and scalable.
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关键词
Privileged ligands,PHOX,Asymmetric catalysis,Aza-Michael
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