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Synthesis of 3‑Pyrrolin-2-ones by Rhodium-Catalyzed Transannulation of 1‑Sulfonyl-1,2,3-triazole with Ketene Silyl Acetal

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journal contribution
posted on 18.07.2014, 00:00 by Rui-Qiao Ran, Jun He, Shi-Dong Xiu, Kai-Bing Wang, Chuan-Ying Li
α-Imino rhodium carbenoids generated from 1-sulfonyl 1,2,3-triazole were applied to the 3 + 2 cycloaddition with ketene silyl acetal, offering a novel and straightforward synthesis of biologically interesting compound 3-pyrrolin-2-one with broad substrate scope.