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.
โฆ LIBER โฆ
Conformations of tartaric acid and its esters
โ Scribed by Polavarapu, P. L.; Ewig, C. S.; Chandramouly, T.
- Book ID
- 121220700
- Publisher
- American Chemical Society
- Year
- 1987
- Tongue
- English
- Weight
- 617 KB
- Volume
- 109
- Category
- Article
- ISSN
- 0002-7863
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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 b