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Substituent effects on one-bond carbon-13-carbon-13 NMR coupling constants between the carbonyl carbon and C1 in methyl benzoates. Is there a dependence on .pi.-bond-order changes?

✍ Scribed by Dell'Erba, Carlo; Mele, Andrea; Musio, Roberta; Novi, Marino; Petrillo, Giovanni; Sancassan, Fernando; Sciacovelli, Oronzo; Spinelli, Domenico


Book ID
126928588
Publisher
American Chemical Society
Year
1992
Tongue
English
Weight
374 KB
Volume
57
Category
Article
ISSN
0022-3263

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A study of orientation effects of electr
✍ Tom Spoormaker; Marius J. A. de Bie 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 653 KB

## Abstract Orientation effects of electronegative substituents on vicinal carbon‐proton coupling constants are studied in 1,2‐disubstituted propanes and are found to resemble those on vicinal proton‐proton coupling constants. Known relations for the orientation effect of substituents on synclinal