Keywords
1
4-dioxane
C2 building block
copper catalysis
cycloaddition
quinolines.
three-component coupling reaction
Abstract
A copper-catalyzed three-component coupling sequence for 2-arylquinolines formation from aromatic aldehydes, anilines and 1,4-dioxane has been described. Unexpectedly, 1,4-dioxane served as a C2 building block in this transformation. This formal [4 + 2] approach provides rapid access to 2-arylquinolines with broad substrate scope under mild conditions.
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