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Determination of enantiomeric purity of glycols RCHOHCH2OH

โœ Scribed by Ernest L. Eliel; Kwang-Youn Ko

Publisher
Elsevier Science
Year
1983
Tongue
French
Weight
242 KB
Volume
24
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

The enantiomeric purity of primary-secondary glycols, RCHOHCH2OH, is conveniently determined by conversion to a pair of epimeric 1,3-dioxolanes through condensation with bensaldehyde, followed by nmr spectroscopy in presence of a chiral shift reagent with observation of the bensylic protons.

๐Ÿ“œ SIMILAR VOLUMES

Determination of enantiomeric purity of
Determination of enantiomeric purity of axially chiral biaryls
โœ Kuninobu Kabuto; Fujiko Yasuhara; Shozo Yamaguchi ๐Ÿ“‚ Article ๐Ÿ“… 1980 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 125 KB

Sumnary: Enantlomenc purities of axially choral biaryls with hydroxyl, amino, and carboxyl groups can be easily determlned by pmr spectra using MTPA derivatives and shift reagent. Recently, Behnam et al. have reported' that the methyl proton signals in racemlc biaryls such as dimethyl 6,6'-dlmethoxy