Abstract

N-Sulfinyl urea 1 was identified as powerful organocatalyst for the conjugate addition of thioacetic acid to nitroalkenes. In cyclopentyl methyl ether (CPME) the desired products were obtained in good yields (÷63%) and high enantio­selectivities (er up to 98:2). The reaction tolerates a wide range of substrates including electron-rich and electron-deficient aromatic, as well as linear and branched aliphatic nitroalkenes.

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