Asymmetric Iminium Ion Catalysis with a Novel Bifunctional Primary Amine Thiourea: Controlling Adjacent Quaternary and Tertiary Stereocenters
摘要:
,β-unsaturated aldehydes, generating valuable chiral scaffolds with contiguous quaternary and tertiary stereocenters (see scheme). For the first time, a chiral primary amine thiourea catalyst has been successfully applied for iminium-ion activation.
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DOI:
10.1002/chem.200802466
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年份:
2009
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