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Enantioselective Michael addition reactions of malononitrile and cyanoesters to α,β-unsaturated 2-acylimidazoles can be achieved in water using a DNA-based catalyst consisting of double-stranded DNA and copper(II) complex. Quantitative conversions and good enantioselectivities (up to 84% ee) are obtained for a wide range of substrates. The UV–vis absorption and circular dichroism (CD) indicate that...
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