25. Junming Mo, Xingkuan Chen and Yonggui Robin Chi*. Oxidative γ-Addition of Enals to Trifluoromethyl Ketones: Enantioselectivity Control via Lewis Acid/N-Heterocyclic Carbene Cooperative Catalysis. J. Am. Chem. Soc. 2012, 134, 8810–8813. (PDF) |
24. Bhoopendra Tiwari, Junmin Zhang and Yonggui Robin Chi*. Facile Access to Chiral Ketones through Metal-Free Oxidative C-C Bond Cleavage of Aldehydes by O2. Angew. Chem. Int. Ed. 2012, 51, 1911-1914. (PDF) |
23. Junmin Zhang, Bhoopendra Tiwari, Chong Xing, Xingkuan Chen and Yonggui Robin Chi*. Enantioselective Oxidative Cross-Dehydrogenative Coupling of Tertiary Amines to Aldehydes. Angew. Chem. Int. Ed. 2012, 51, 3649-3652. (PDF) |
22. Qiang Tang, Xingkuan Chen, Bhoopendra Tiwari, and Yonggui Robin Chi*. Addition of Indoles to Oxyallyl Cations for Facile Access to a-Indole Carbonyl Compounds. Org. Lett. 2012, 14, 1922–1925. (PDF) |
21. Lin Hao, Yu Du, Hui Lv, Xingkuan Chen, Huishen Jiang, Yaling Shao, and Yonggui Robin Chi*. Enantioselective Activation of Stable Carboxylate Esters as Enolate Equivalents via N-Heterocyclic Carbene Catalysts. Org. Lett. 2012, 14, 2154–2157. (PDF) |
20. Kun Jiang, Bhoopendra Tiwari and Yonggui Robin Chi*. Access to Spirocyclic Oxindoles via N-Heterocyclic Carbene-Catalyzed Reactions of Enals and Oxindole-Derived α,β-Unsaturated Imines. Org. Lett. 2012, 14, 2382–2385. (PDF) |
19. Zhichao Jin, Ruojie Yang, Yu Du, Bhoopendra Tiwari, Rakesh Ganguly, and Yonggui Robin Chi*. Enantioselective Intramolecular Formal [2 + 4] Annulation of Acrylates and α,β-Unsaturated Imines Catalyzed by Amino Acid Derived Phosphines. Org. Lett. 2012, 14, 3226-2339. (PDF) |
18. Hui Lv, Bhoopendra Tiwari, Junming Mo, Chong Xing, and Yonggui Robin Chi*. Highly Enantioselective Addition of Enals to Isatin-Derived Ketimines Catalyzed by N-Heterocyclic Carbenes: Synthesis of Spirocyclic γ-Lactams. Org. Lett. 2012, 14, 5412–5415. (PDF) |
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