Carbonyl ylide reactions of α-benzylidene-β-dicarbonyl compounds: competitive formation of dihydrofurans and dihydrobenzoxepines


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

Tetrahedron Letters, cilt.49, sa.6, ss.1062-1065, 2008 (SCI Expanded İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • 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

α-Benzylidene-β,β′-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. © 2007 Elsevier Ltd. All rights reserved.