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Determination of the configurations (cis or trans) of alkenols by the effects of paramagnetic shift reagents on their NMR spectra

✍ Scribed by Herman G Richey Jr.; Frederick W Von Rein

Publisher: Elsevier Science
Year: 1971
Tongue: French
Weight: 229 KB
Volume: 12
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)97287-9

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✦ Synopsis

The configurations (c& or trans) of the members (L-2) of a group of alkenols (L), obtained, as described in the preceding communication, 1 from additions of Grignard reagents to R1\ , c=c ,(CH2)nhHR4 R2 'R3

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17O NMR spectra of the 1,6-anhydro-β-D-hexopyranoses and related-compounds. Determination of configurational effects on the chemical shifts

✍ Jürgen Lauterwein; Jürgen Schulte; Martin Schumacher; Miloslav Černý 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 725 KB

## Abstract Well resolved natural‐abundance ^17^O NMR spectra of the eight 1,6‐anhydro‐β‐D‐hexopyranoses and three deoxy model compounds were recorded in aqueous solution at 90°C. The assignment of the resonances was obtained by chemical shift comparison, __O__‐acetylation, lanthanide shift reagent