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Synthesis of α-Alkynylnitrones via Hydromagnesiation of 1,3-Enynes with Magnesium Hydride

Yihang Li, Jia Sheng Ng, Bin Wang and Shunsuke Chiba*

*Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Email: shunsukentu.edu.sg

Y. Li, J. S. Ng, B. Wang, S. Chiba, Org. Lett., 2021, 23, 5028-5032.

DOI: 10.1021/acs.orglett.1c01583 (free Supporting Information)


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Abstract

Solvothermal treatment of magnesium iodide (MgI2) with sodium hydride (NaH) provides magnesium hydride (MgH2), which can be used for hydromagnesiation of 1,3-enynes. Downstream functionalization of the resulting propargylmagnesium intermediates with organo nitro compounds affords α-alkynylnitrones.

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Key Words

nitrones


ID: J54-Y2021