【摘 要】
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The synthesis of oxindoles has attracted much interest not only because of their significant biological activities but also because they are important intermediates in the synthesis of heterocyclic co
【机 构】
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College of Chemistry and Chemical Engineering,Xiamen University,Xiamen,Fujian,CHINA
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The synthesis of oxindoles has attracted much interest not only because of their significant biological activities but also because they are important intermediates in the synthesis of heterocyclic compounds.1 Difunctionalization reaction of alkenes through a radical process provided an appealing approach for the synthesis of functional oxindoles.On the other hand,diaryliodonium salts have emerged as powerful electrophilic arylation reagents in metal-catalyzed or metal-free cross-coupling reactions.2 In connection with radical-mediated cyclizations of arylacrylamides,we envisioned that diaryliodonium salts might react with N-arylacrylamides to form the oxindole.As shown in Scheme 1,we have developed a Cu-catalyzed approach for the assembly of the biologically important oxindole derivatives.A broad scope of N-arylacrylamides and diphenyliodonium salt coupling partners has been defined.The reactions of diaryliodonium salts with other coupling partners are currently in progress.
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