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Synfacts 2010(1): 0057-0057  
DOI: 10.1055/s-0029-1218506
Metal-Catalyzed Asymmetric Synthesis and Stereoselective Reactions
© Georg Thieme Verlag Stuttgart ˙ New York

Zr- and Hf-Catalyzed Asymmetric Friedel-Crafts Alkylation of Indoles with Endiones

Contributor(s): Hisashi Yamamoto, Zhi Li
G. Blay, I. Fernández, A. Monleón, M. C. Muñoz, J. R. Pedro*, C. Vila
Universitat de València and Universidad Politécnica de Valencia, Spain
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Publikationsdatum:
21. Dezember 2009 (online)

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Significance

This paper describes a hafnium BINOL catalyzed asymmetric Friedel-Crafts alkylation on the C3 of indoles. Various (E)-1,4-diaryl- 2-butene-1,4-diones were used as electrophiles. 1,4-Dicarbonyl products with one stereocenter were generated in high yields and high enantio­selectivities.