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- W2950767595 endingPage "9740" @default.
- W2950767595 startingPage "9724" @default.
- W2950767595 abstract "A new and general synthesis of alkyl cyanoformates is presented starting from the appropriate alcohol and oxalyl chloride. This is used to prepare enantiomerically pure cyanoformates from enantiomerically pure primary and secondary alcohols. Optimal conditions for the addition of various achiral cyanoformates to aldehydes catalysed by an enantiomerically pure titanium(salen) catalyst in the presence of potassium cyanide as a cocatalyst are developed. Under these conditions, two chiral cyanoformates also reacted with aldehydes to give cyanohydrin carbonates. The stereochemistry of this process is predominantly determined by the stereochemistry of the titanium(salen) catalyst and the stereochemistry of two of the cyanohydrin carbonates was confirmed by X-ray crystallography. In a further extension of the chemistry, a homogeneous system in which the potassium cyanide/18-crown-6 complex is used as the cyanide cocatalyst has been developed and the kinetics of this reaction show that it displays first order kinetics, provided at least 2 mol % of the potassium cyanide complex are employed." @default.
- W2950767595 created "2019-06-27" @default.
- W2950767595 creator A5024435043 @default.
- W2950767595 creator A5027434411 @default.
- W2950767595 creator A5033495838 @default.
- W2950767595 creator A5053714721 @default.
- W2950767595 creator A5085089375 @default.
- W2950767595 creator A5091708807 @default.
- W2950767595 date "2007-09-01" @default.
- W2950767595 modified "2023-10-16" @default.
- W2950767595 title "Enantioselective and diastereoselective syntheses of cyanohydrin carbonates" @default.
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