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Synthesis 2008(12): 1832-1834
DOI: 10.1055/s-2008-1067098
DOI: 10.1055/s-2008-1067098
SHORTPAPER
© Georg Thieme Verlag Stuttgart · New York
Cascade Enantioselective Synthesis of 3-Arylphthalides Using Chiral Auxiliary Route
Further Information
Received
16 November 2007
Publication Date:
16 May 2008 (online)
Publication History
Publication Date:
16 May 2008 (online)
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Abstract
An enantioselective synthesis of 3-arylphthalides was achieved using (S)-1-phenylethylamine as a chiral auxiliary. Reduction of chiral keto amides of 2-aroylbenzoic acids followed by acid-catalyzed lactonization yielded (S)-3-arylphthalides with 75-85% ee.
Key words
enantioselective synthesis - (S)-1-phenylethylamine - chiral auxiliary - reduction - 3-arylphthalides
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