๐”– Bobbio Scriptorium
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tert-butyl esters and ethers of (R,R)-tartaric acid

โœ Scribed by G. Uray; W. Lindner

Book ID
104203745
Publisher
Elsevier Science
Year
1988
Tongue
French
Weight
472 KB
Volume
44
Category
Article
ISSN
0040-4020

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โœฆ Synopsis

The unknown tert-butyl 4a.b of otherwise nonsubstmed esters Za,b and -ethers acid are optical pure (R,R)-tartaric synthesized. Esters acyl protected are made by reaction-of O.O-ditartaric acid with isobutene and selective cleavage via transesterification of the protective groups. Ethers are formed bv reaction of dibenzvl tartrate with isobutene followed by hydrogenolysis of the-benzyl groups.Saponification of the corresponding dimethyl tartrate led to partial racemization forming up to 50% meso product.

๐Ÿ“œ SIMILAR VOLUMES

Conformational disparity of (R,R)-tartar
Conformational disparity of (R,R)-tartaric acid esters and amides
โœ Jacek Gawronski; Krystyna Gawronska; Urszula Rychlewska ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 247 KB

Exciton chirality method is used to determine anti and gauche conformations, respectively, of ester and dialkylamide derivatives of (R,R)tartaric acid. Gauche conformation of (R,R)-N,N,N'-tetramethyltartamide and its O,O-dibenzoyl derivative is found in the solid state by X-ray analysis.

PREPARATION OF tert -BUTYL ARYL ETHERS
PREPARATION OF tert -BUTYL ARYL ETHERS
โœ STEVENS, DONALD R. ๐Ÿ“‚ Article ๐Ÿ“… 1955 ๐Ÿ› American Chemical Society ๐ŸŒ English โš– 288 KB