Readily Accessible Unsymmetrical Unsaturated 2,6-Diisopropylphenyl N‑Heterocyclic Carbene Ligands. Applications in Enantioselective Catalysis
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A new multicomponent procedure was applied to the synthesis of (a)chiral bulky unsymmetrical unsaturated 2,6-diisopropylphenyl N-heterocyclic carbene (NHC) precursors with excellent selectivity (up to 95%) and good yields. This approach offers access to new chiral NHC ligands, which have found successful applications in both copper-catalyzed asymmetric allylic alkylation and copper-catalyzed asymmetric borylation.
创建时间：
2017-02-02
