Lewis Acid-Catalyzed Formal [2π+2σ] Cycloaddition of Bicyclobutanes with Quinoxalin-2(1H)-ones: Access to Quinoxaline-Fused Aza-Bicyclo[2.1.1]hexanes.
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DOI: 10.1021/acs.orglett.4c01775
Abstract: An efficient synthesis of quinoxaline-fused aza-bicyclo[2.1.1]hexanes bearing multiple quaternary carbon centers via the intermolecular [2π+2σ] cycloaddition of bicyclo[1.1.0]butanes and quinoxalin-2(1H)-ones, facilitated by Lewis acid catalysis, is presented. This reaction is carried out under mild conditions… read more here.
Keywords: quinoxalin ones; bicyclo; quinoxaline fused; fused aza ... See more keywords
Quinoxaline-fused octaphyrin(2.0.0.0.2.0.0.0). A rudimentary chemosensor.
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DOI: 10.1039/d2cc05604f
Abstract: A quinoxaline-fused octaphyrin(2.0.0.0.2.0.0.0) was synthesized by the FeCl3-induced oxidative coupling of an α-free quinoxaline-fused tetrapyrrole. This macrocycle adopts a figure-of-eight conformation in the solid state and acts as a rudimentary chemosensor in solution. The Lewis… read more here.
Keywords: rudimentary chemosensor; octaphyrin rudimentary; fused octaphyrin; quinoxaline fused ... See more keywords