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• W2138077900 endingPage "1968" @default.
• W2138077900 startingPage "1959" @default.
• W2138077900 abstract "The propionates ( R )‐5 and ( R )‐ 6 which are derived from the readily available chiral auxiliary reagent ( R )‐triphenylglycol ( 4 ) have been applied in stereoselective aldol reactions. Whereas the enolate 7 and the silyl ketene acetal 12 , both generated from the ester ( R )‐ 6 , display only moderate diastereoselectivity when treated with benzaldehyde, ß‐hydroxyesters 8b and 16a , b are formed in diastereomeric ratios up to 95:5 (ratio of the main product to the sum of all other stereoisomers) when the propionate ( R )‐ 5 is subsequently deprotonated, transmetalated into the zirconium enolate and allowed to react with aldehydes. Alkaline hydrolysis or reduction with LiAlH 4 enables the conversion of the adducts 8a and 16a" @default.
• W2138077900 created "2016-06-24" @default.
• W2138077900 creator A5023212274 @default.
• W2138077900 creator A5062302157 @default.
• W2138077900 creator A5085783713 @default.
• W2138077900 date "1994-10-01" @default.
• W2138077900 modified "2023-10-18" @default.
• W2138077900 title "( <i>R</i> )‐1,2,2‐Triphenyl‐2‐(trimethylsiloxy)ethyl Propionate: anti‐Selective and Diastereofacially Selective Aldol Addition; Diastereoselective Silylation and Alkylation" @default.
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• W2138077900 doi "https://doi.org/10.1002/cber.19941271020" @default.
• W2138077900 hasPublicationYear "1994" @default.
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