The 1 H and 13 C NMR spectra of 17 succinic anhydride derivatives and 25 maleic anhydride derivatives were completely assigned using one-and two-dimensional NMR techniques.
13C NMR Spectra of Electrically Neutral Organic Lewis Acids
β Scribed by E. Haslinger; P. Wolschann
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2010
- Weight
- 268 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0037-9646
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
The ^13^C NMR spectra of a number of derivatives of the cyclic acylal of malonic acid and of dimethylbarbituric acid are reported. These compounds contain an electron poor polarized carbon β carbon double bond and act therefore, as Lewis acids.
π SIMILAR VOLUMES
The 'H and "C NMR spectra of anhydroerythromycin A in methanol-d, and buffered D,O have been fully assigned using a range of one-and two-dimensional N M R techniques.
The 'H and 13C N M R spectra of anhydroerythromycin A in methanol-d, and buffered D,O have been fully assigned using a range of one-and two-dimensional NM R techniques.
The ' H and "C NMR of a series of benzoic acid-substituted nitrate esters were measured and assigned on the basis of substituent chemical shifts, COSY experiments and 13C,' H shift correlated spectra KEYWORDS 'H NMR; "C NMR; benzoic acid derivatives; organic nitrate esters
Twelve para-and meta-substituted benzhydroxamic acids were subjected to exhaustive silylation with N-(tert-butyldimethylsilyl)-N-methyltrifluoroacetamide (with 1% of tert-butyldimethylsilyl chloride as a catalyst). In all cases only one product was isolated. According to the assigned NMR spectra ( 1