Metal-free synthesis of 2-difluoromethylated quinolines via DBU-promoted cascade michael addition / cyclization of methyl 4,4-difluorobut-2-ynoate with 2-aminobenzonitriles
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Add time:07/17/2019 Source:sciencedirect.com
A facile synthesis of 2-difluoromethylated quinolines via DBU-promoted cascade Michael addition/cyclization between functionalized 2-aminobenzonitriles and methyl 4,4-difluorobut-2-ynoate has been developed. Various highly functionalized quinolines were assembled in moderate to good yields under mild metal-free reaction conditions.
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