Conformational study of methyl esters of some aliphatic erythro- and threo-dichlorocarboxylic acids
✍ Scribed by Maija Pitkänen
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 539 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The average conformations of methyl esters of some aliphatic erythro‐ and threo‐dichlorocarboxylic acids in dilute carbon tetrachloride solutions have been determined from the vicinal proton–proton coupling constants and ^1^H NMR shifts. The ^13^C shift differences between the erythro and threo forms are compared and discussed with regard to the differences in the average conformations.
📜 SIMILAR VOLUMES
The ester enolate Claisen rearrangement of IE)-and IZ)-2-butenyl ## 2-hydroxyacetates gave erythro-and threo-2-hydroxy-3-methyl-4-pentenoic acids with high diastereoselectivity via silyl ketene acetals, respect<vely.