Pd/P/dba-Promoted cascade annulations to produce fused medium-sized sulfoximine polyheterocycles
Literature Information
Xiaoyan Chen, Hao Zhou, Zhiyuan Chen
The Pd-catalyzed multicomponent reactions of NH-sulfoximine, aryl iodide and norbornadiene (NBD) are reported to chemoselectively produce fused medium-sized sulfoximine polyheterocycles in good to excellent yields. The addition of the dibenzylideneacetone (dba) ligand was found to be useful for this tandem annulation reaction. Under the optimized conditions, a broad range of 3D-type heterocyclic sulfoximines with good functional group tolerance were generated.
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