Diastereoselective synthesis of erythro-
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Toshio Sato; Kazuhisa Tajima; Tamotsu Fujisawa
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Article
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1983
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Elsevier Science
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French
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The ester enolate Claisen rearrangement of IE)-and IZ)-2-butenyl ## 2-hydroxyacetates gave erythro-and threo-2-hydroxy-3-methyl-4-pentenoic acids with high diastereoselectivity via silyl ketene acetals, respect<vely.