Tetrahedron Letters p. 2018 - 2020 (2018)
Update date:2022-08-11
Topics:
Wang, Gangqiang
Chen, Rongxing
Zhao, Sen
Yang, Liangfeng
Guo, Haibing
Sun, Shaofa
Wang, Jian
Domena, Justin
Xing, Yalan
1,2,4-Oxadiazin-5-ones were prepared via [3+3] cycloaddition of in situ generated aza-oxyallylic cations with nitrile oxides in good yields and excellent functional group compatibility. This efficient transformation is metal-free and is promoted by an inorganic base Cs2CO3. In addition, this reaction features simple-operation, mild conditions, and high regioselectivity.
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Doi:10.1039/b206050g
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