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AgNO2 as the NO Source for the Synthesis of Substituted Pyrazole N‑Oxides from N‑Propargylamines

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journal contribution
posted on 01.11.2016, 19:51 by Bingxiang Yuan, Fuming Zhang, Zhuomei Li, Shenghua Yang, Rulong Yan
A straightforward method for synthesizing the pyrazole N-oxides from N-propargylamines and AgNO2 through oxidation/cyclization reaction had been developed. AgNO2 was used as the NO source for the first time to synthesize pyrazole N-oxides. Various substituted groups on N-propargylamines proceeded smoothly, and the desired products were obtained in good yields.

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