A Convenient Method for Converting Hydroxyacetophenones into Their Ethylene or Trimethylene Acetals
作者:Tsuneo Sato、Fumiaki Ono、Hirotaka Takenaka、Toshikazu Fujikawa、Masaki Mori
DOI:10.1055/s-0028-1088025
日期:2009.4
Various types of hydroxyacetophenones are efficiently converted into the corresponding ethylene acetals in the presence of ethane-1,2-diol, triisopropyl orthoformate, and a catalytic amount of cerium(III) trifluoromethanesulfonate under mild reaction conditions. The homologous trimethylene acetals can be also prepared in the same way.