1-Aryl-4-carboxy-5-methyl-1,2,3-triazoles were prepared by the condensation of aryl azides with ethyl acetoacetate. The structures of these compounds were characterized by MS, IR and 1H and 13C NMR spectroscopy. The measured and calculated 13C chemical shifts of the aromatic carbons were compared.
1H and 13C NMR characterization of poly[3-(6-methoxyhexyl)-2,2′-bithiophene]
✍ Scribed by D. Iarossi; A. Mucci; L. Schenetti; P. Costa Bizzarri; C. Della Casa; M. Lanzi
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 140 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
A full 1H and 1C NMR study through the use of one-and two-dimensional techniques (HMQC, HMBC, TOCSY and NOE-di †erence spectroscopy) was carried out on poly[3-(6-methoxyhexyl)-2,2@-bithiophene]. Inter-ring correlations detected in the HMBC spectra proved to be a valuable tool in the assignment of regiochemistry. NMR data can be interpreted on the basis of a four-triad model.
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