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Pd II/IV catalyzed oxidative cyclization of 1,6-enynes derived by Ugi-4-component reaction

Sebastian J Welsch,Michael Umkehrer,Gunther Ross,Jurgen Kolb,Christoph Burdack,Ludger A Wessjohann

Tetrahedron Letters（2011）

Cited 25|Views5
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Abstract
A variety of 1,6-enynes were synthesized by an Ugi-reaction and further elaborated by a PdII/IV catalyzed oxidative cyclization to produce N-substituted 3-aza-bicyclo[3.1.0]hexan-2-ones. Different substitution patterns were tested to examine the scope and limitations of the amide tethered substrates.
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Key words
Multicomponent reaction,Ugi-reaction,1,6-Enyne,PdII/IV-catalysis,Cycloaddition
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