December 4, 2009
View Full PaperGold(I)-Catalyzed Enantioselective 4 + 2-Cycloaddition of Allene-dienes
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Abstract
An enantioselective gold(I)-catalyzed intramolecular 4 + 2-cycloaddition of allenes and dienes is reported. The reactions allow for the asymmetric synthesis of trans-hexahydroindenes and pyrrolidine products using C(3)-symmetric phosphitegold(I) and ortho-arylphosphoramiditegold(I) complexes as catalysts, respectively.