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Synthesis 1993; 1993(4): 371-373
DOI: 10.1055/s-1993-25864
short paper
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Lanthanide Trifluoromethanesulfonates as Reusable Catalysts: Aldol Reactions in Organic Solvents

Shū Kobayashi* , Iwao Hachiya, Takeshi Takahori
  • *Department of Applied Chemistry, Faculty of Science, Science University of Tokyo (SUT), Kagurazaka, Shinjuku-ku, Tokyo 162, Japan
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Publication Date:
17 September 2002 (online)

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The aldol reaction of silyl enolates with aldehydes or acetals using a lanthanide trifluoromethanesulfonate as catalyst smoothly proceed in organic solvents to afford the corresponding aldol-type adducts in high yields. The catalyst can be easily recovered after the reaction is completed, and yields of the 2nd run of the catalyst are comparable to those of the 1st run.