Abstract
A series of spiro-oxindole derivatives was synthesized by novel regioselective 1,3-dipolar cycloadditions of isatin, α-amino acids, and (E)-β-aryl-nitro-olefins. Regioisomers were produced in each reaction and the major products showed different regioselectivity compared to previously reported spiro-oxindole derivatives.
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Chen, G., Yang, J., Gao, S. et al. Spiro[pyrrolidine-2,3′-oxindole] derivatives synthesized by novel regionselective 1,3-dipolar cycloadditions. Mol Divers 16, 151–156 (2012). https://doi.org/10.1007/s11030-011-9342-1
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DOI: https://doi.org/10.1007/s11030-011-9342-1