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  • Title: Organocatalytic asymmetric 1,4-addition of aldehydes to acridiniums catalyzed by a diarylprolinol silyl ether.
    Author: Liang T, Xiao J, Xiong Z, Li X.
    Journal: J Org Chem; 2012 Apr 06; 77(7):3583-8. PubMed ID: 22390361.
    Abstract:
    The organocatalytic enantioselective 1,4-addition of aldehydes to acridiniums catalyzed by diarylprolinol silyl ether was achieved to furnish chiral acridanes in both high yields (82-96%) and excellent enantioselectivities (up to 99% ee), which also provides the highly enantioselective intermolecular α-alkylation of aldehydes with acridiniums salt.
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