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Ruthenium- and Sulfonamide-Catalyzed Cyclization between N-Sulfonyl Imines and Alkynes
- Zhao, Peng, Wang, Fen, Han, Keli, Li, Xingwei
- Organic letters 2012 v.14 no.21 pp. 5506-5509
- alkynes, chemical reactions, chemical structure, imines, ruthenium
- Ruthenium(II)-catalyzed redox-neutral annulative coupling of N-sulfonyl imines with alkynes has been achieved for the synthesis of indenamines, where a sulfonamide cocatalyst is necessary.