A catalytic asymmetric Ugi-type reaction with acyclic azomethine imines |
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Authors: | Hashimoto Takuya Kimura Hidenori Kawamata Yu Maruoka Keiji |
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Affiliation: | Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan. |
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Abstract: | An unconventional Ugi: A catalytic asymmetric Ugi-type reaction can be realized by use of N'-alkylbenzohydrazide, instead of a conventional amine, in the presence of an axially chiral dicarboxylic acid. The reaction proceeds through a key acyclic azomethine imine intermediate, which has recently emerged as a promising electrophile in asymmetric catalysis. |
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Keywords: | azomethine imine chiral Brønsted acid isocyanides multicomponent reaction Ugi reaction |
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