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All articles of this category Chiral semicorrin-copper complexes are efficient enantioselective catalysts for intramolecular cyclopropanation reactions of diazomethyl alkenyl ketones leading to bicyclo[3.1.0]hexan-2-ones (up to 85% ee) and bicyclo[4.1.0]heptan-2-ones (up to 95% ee). Asymmetric catalysis - enantioselective intramolecular cyclopropanation - cyclization - diazo compounds - copper-semicorrin complexes
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PIQUE et al. (1995) studied this question.
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