Synthesis of β-and β,β-substituted Morita-Baylis-Hillman adducts using a two-step protocol

David I. MaGee, Same Ratshonka, Jessica McConaghy, Maggie Hood

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4 Citations (Scopus)


The synthesis of a large number of β-and β,β-substituted keto esters was successful by the use of the Knoevenagel condensation reaction. The stereoselectivity of these reactions was improved by alteration of various substituent groups. Although there were few examples of complete Z selectivity, the use of tert-butyl acetoacetate with either aromatic or aliphatic aldehydes afforded Z selectivity. The selective reductions of these substituted keto esters was successfully achieved by using a combination of NaBH 4 and CeCl 3·7H 2O or Yb(OTf) 3, which allowed a facile synthesis of a large number of stereochemically pure substituted Morita-Baylis-Hillman adducts, including β,β-substituted adducts.

Original languageEnglish
Pages (from-to)450-463
Number of pages14
JournalCanadian Journal of Chemistry
Issue number5
Publication statusPublished - May 1 2012


All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Organic Chemistry

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