A new PhI(OAc)2-mediated 1,2-aminohalogenation of prop-2-yn-1-yl carbamates and various halogen sources is presented with excellent selectivity and high step-economy. The reaction is general and rapid for the construction of diverse (E)-4-(halomethylene)oxazolidin-2-ones through the generation of the three-membered ring or N-radical followed by intramolecular cyclization.
R. Wang, H. Zou, Y. Xiong, N. Yi, W. Deng and J. Xiang, Org. Biomol. Chem., 2017, 15, 3964 DOI: 10.1039/C7OB00509A
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