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Dr. Irene Ortín and Prof. Dr. Darren J. Dixon Direct Catalytic Enantio- and Diastereoselective Mannich Reaction of Isocyanoacetates and Ketimines Angewandte Chemie International Edition 53

Article first published online: 24 FEB 2014 | DOI: 10.1002/anie.201309719

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Binary catalyst system: A catalytic asymmetric synthesis of imidazolines with a fully substituted β-carbon atom through a Mannich-type addition/cyclization reaction of isocyanoacetate pronucleophiles and N-diphenylphosphinoyl ketimines has been developed. By employing a cinchona-derived aminophosphine precatalyst and silver oxide as a binary catalyst system, good reactivity and high diastereo- and enantioselectivities were obtained.

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