CommunicationRemote regioselective organocatalytic asymmetric [3+2] cycloaddition of N-2,2,2-trifluoroethyl isatin ketimines with cyclic 2,4-dienones

Add time:08/27/2019    Source:sciencedirect.com

An organocatalytic asymmetric [3 + 2] cycloaddition of trifluoromethyl-containing azomethine ylides with cyclic 2,4-dienones was developed. The process enables efficient incorporation of CF3 groups into functionalized spiro[pyrrolidin-3,2′-oxindoles] in high yields with good to excellent enantio- and diastereoselectivities.

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