Annulations via Dianions: Formation of Five-, Six- and Seven-Membered Rings

George A. Kraus; Sarathy Kesavan

doi:10.1055/s-2005-864836

LETTER

Annulations via Dianions: Formation of Five-, Six- and Seven-Membered Rings

George A. Kraus*, Sarathy Kesavan
Department of Chemistry, Iowa State University, Ames, IA 50011, USA
e-Mail: gakraus@iastate.edu;

Abstract

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Abstract

Phosphonium salts bearing an electron-withdrawing group at the γ-position form dianions that react with bis-electrophiles to generate five-, six-, and seven- membered rings.

Key words

dianions - bis-electrophiles - annulation

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References

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