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Synlett 1991; 1991(6): 439-440
DOI: 10.1055/s-1991-20756
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Chiral (Acyloxy)borane Catalyzed Asymmetric Aldol Type Reaction of Ketene Silyl Acetals with Aldehydes

Kyoji Furuta* , Tohru Maruyama, Hisashi Yamamoto
  • *Department of Applied Chemistry, Nagoya University, Chikusa, Nagoya 464-01, Japan
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Publication Date:
07 March 2002 (online)

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Chiral (acyloxy)borane complex, obtained from 2-O-(2,6-diisopropoxybenzoyl)tartaric acid and tetrahydrofuranborane complex, promotes the aldol type reaction of ketene O-alkyl/aryl O-trimethylsilyl acetals with achiral aldehydes in a catalytic manner to furnish erythro ß-hydroxy esters with good to excellent chemical and optical yields.

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