Enantioselective PCCP Brønsted acid-catalyzed aminalization of aldehydes
Martin Kamlar, Róbert Reiberger, Martin Nigríni, Ivana Cı́sařová, Ján Veselý
Abstract
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Martin Kamlar, Róbert Reiberger, Martin Nigríni, Ivana Cı́sařová, Ján Veselý
Abstract
Open-access reader
Here we present an enantioselective aminalization of aldehydes catalyzed by Brønsted acids based on pentacarboxycyclopentadienes (PCCPs). The cyclization reaction using readily available anthranilamides as building blocks provides access to valuable 2,3-dihydroquinazolinones containing one stereogenic carbon center with good enantioselectivity (ee up to 80%) and excellent yields (up to 97%).
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Here we present an enantioselective aminalization of aldehydes catalyzed by Brønsted acids based on pentacarboxycyclopentadienes (PCCPs). The cyclization reaction using readily available anthranilamides as building blocks provides access to valuable 2,3-dihydroquinazolinones containing one stereogenic carbon center with good enantioselectivity (ee up to 80%) and excellent yields (up to 97%).
Key concepts: Enantioselective synthesis, Stereocenter, Chemistry, Brønsted–Lowry acid–base theory, Catalysis, Combinatorial chemistry, Organocatalysis, Carbon fibers