反応 #5091

ord-6c48a288eea14ea8baf5587a401e78ea

反応条件

詳細条件
See reaction.notes.procedure_details.

後処理

  1. 1
    温度the mixture was heated
  2. 2
    温度refluxed for 6 hours
  3. 3
    濃縮the reaction mixture was concentrated by removal of the solvent
  4. 4
    その他the residue thus obtained
  5. 5
    その他was purified by means of a silica gel column chromatography

実験手順

11 Grams of 2,3-dihydro-2,4-dimethyl-3-phenyl-4-methyl-7-crotyloxy-1H-inden-1-one was added to 55 ml of tetrahydronaphthalene and the mixture was heated and refluxed for 6 hours with stirring condition. After the reaction was completed, the reaction mixture was concentrated by removal of the solvent, and the residue thus obtained was purified by means of a silica gel column chromatography. 11.2 Grams of 2,3-dihydro-2, 4-dimethyl-3-phenyl-6-(1-buten-3-yl)-7-hydroxy-1H-inden-1-one was obtained as cis-trans mixture. Yellow oily substance.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US05242919uspto-grants-1993_09