Carbonyl ylide reactions of alpha-benzylidene-beta-dicarbonyl compounds: Competitive formation of dihydrofurans and dihydrobenzoxepines


Anac O. , SEZER Ö. , CANDAN O., GUNGOR F. S. , CANSEVER M. S.

TETRAHEDRON LETTERS, cilt.49, ss.1062-1065, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 49 Konu: 6
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.tetlet.2007.11.197
  • Dergi Adı: TETRAHEDRON LETTERS
  • Sayfa Sayıları: ss.1062-1065

Özet

alpha-Benzylidene-beta,beta'-biscarbonyl compounds were reacted with dimethyl diazomalonate using Cu(II) acetylacetonate as a catalyst. Dihydrofurans or mixtures of dihydrofurans and dihydrobenzoxepines were obtained depending on the nature of the carbonyl group present in the starting material. (c) 2007 Elsevier Ltd. All rights reserved.