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Rh(II)/Brønsted Acid Cocatalyzed Intramolecular Trapping of Ammonium Ylides with Enones: Diastereoselective Synthesis of 2,2,3-Trisubstituted Indolines

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journal contribution
posted on 05.09.2014 by Liqin Jiang, Renqi Xu, Zhenghui Kang, Yixiao Feng, Fengxia Sun, Wenhao Hu
Highly diastereoselective intramolecular trapping of ammonium ylides with enones has been developed through a Rh­(II)/Brønsted acid cocatalytic strategy. This process allows rapid and efficient construction of N-unprotected polyfunctional 2,2,3-trisubstituted indolines in moderate to good yields with excellent diastereoselectivity.