Synthesis of Pyran-2-ones by Reaction of 1,1-Bis(trimethylsilyloxy)ketene Acetals with 3-Silyloxyalk-2-en-1-ones

Ehsan Ullah; Peter Langer

doi:10.1055/s-2005-918446

SHORTPAPER

Synthesis of Pyran-2-ones by Reaction of 1,1-Bis(trimethylsilyloxy)ketene Acetals with 3-Silyloxyalk-2-en-1-ones

Ehsan Ullah^a, Peter Langer*^a,b
^a Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany
^b Leibnitz-Institut für Organische Katalyse an der Universität Rostock e. V. (IfOK), Albert-Einstein-Str. 29a, 18059 Rostock, Germany
e-Mail: peter.langer@uni-rostock.de;

Abstract

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Abstract

Functionalized pyran-2-ones were prepared in two steps by the reaction of 1,1-bis(trimethylsilyloxy)ketene acetals with 3-silyloxyalk-2-en-1-ones.

Key words

cyclizations - ketene acetals - pyran-2-ones - silyl enol ethers

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References

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All new compounds gave satisfactory spectroscopic and analytical and/or HRMS data.