Journal
ORGANIC LETTERS
Volume 21, Issue 6, Pages 1713-1716Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b00274
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Funding
- National Natural Science Foundation of China [NSFC 21572183, 21772158, 21801208]
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Palladium-catalyzed asymmetric formal [3 + 2] cycloaddition of vinyl cyclopropanes and aldimines or isatin-derived ketimines proceeded smoothly in the presence of chiral phosphoramidite ligands. The corresponding highly functionalized and optically enriched pyrrolidine or spiro[pyrrolidin-3,2'-oxindole] derivatives are obtained in up to 94% yield and with up to 96% ee and 7:1 dr.
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