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Use of shift reagent with diastereomeric MTPA esters for determination of configuration and enantiomeric purity of secondary carbinols in 1H NMR spectroscopy

✍ Scribed by Shozo Yamaguchi; Fujiko Yasuhara; Kuninobu Kabuto


Publisher
Elsevier Science
Year
1976
Tongue
French
Weight
477 KB
Volume
32
Category
Article
ISSN
0040-4020

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πŸ“œ SIMILAR VOLUMES


Use of shift reagent with MTPA derivativ
✍ Shozo Yamaguchi; Fujiko Yasuhara πŸ“‚ Article πŸ“… 1977 πŸ› Elsevier Science 🌐 French βš– 215 KB

Determination of absolute configuration and optical purity of partially active secondary carbinols by NMR spectroscopy has been the subject of many investigations. l-3 However, configurational assignment of secondary carbinols in an epimeric mixture has so far been limited to the case where the defi

Use of shift reagent with mtpa derivativ
✍ A. J. De Van Wal; E. M. Merckx; G. L. LemiΓ¨re; T. A. van Osselaer; J. A. Lepoivr πŸ“‚ Article πŸ“… 2010 πŸ› Wiley (John Wiley & Sons) βš– 306 KB πŸ‘ 2 views

The LIS values produced by Eu(fodJ3 for the CF3-19F NMR signals of the MlTA e s t e r s of different stereoisomeric secondary alcohols have been measured. The applicability o f these values for assigning the absolute configuration of the alcohols has been studied. The advantages of t h i s method ov

Use of shift reagent with MTPA derivativ
✍ Fujiko Yasuhara; Kuninobu Kabuto; Shozo Yamaguchi πŸ“‚ Article πŸ“… 1978 πŸ› Elsevier Science 🌐 French βš– 282 KB

Determination of absolute configuration and enantiomeric purity of d-amino acids using chemical shift nonequivalence has been well investigated, 132 while little was reported3 on the successful application correlating the absolute configuration of amino acids with their relative magnitude of lanthan