Journal
CHEMICAL COMMUNICATIONS
Volume 52, Issue 22, Pages 4183-4186Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc10502a
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Funding
- NSFC [21572083, 21322201, 21290180]
- FRFCU [lzujbky-2015-48]
- PCSIRT [IRT_15R28]
- 111 Project of MOE of China [111-2-17]
- Chang Jiang Scholars Program
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The asymmetric catalytic 1,6-addition of p-QMs with racemic oxindoles under the bifunctional catalysis of C-2-symmetric dimeric Cinchona-derived squaramide is described. This tertiary amine-squaramide catalyzed reaction provides a diastereoselective and enantioselective approach to the effective assembly of diverse diarylmethine-substituted oxindoles having vicinal tertiary and quaternary stereocenters.
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