Rapid umpolung Michael addition of isatin N,N'-cyclic azomethine imine 1,3-dipoles with chalcones
An umpolung Michael addition of isatin N,N'-cyclic azomethine imine 1,3-dipoles with chalcones is reported. The reaction could be finished within very short time (0.3-2 min), with the 3,3-disubustited oxoindole derivatives...
2000 ◽
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2000 ◽
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