Conformation of succinic acid derivatives by double 13C-labelling
โ Scribed by F.M. Menger; L.H. Lee
- Book ID
- 104216448
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- French
- Weight
- 196 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0040-4039
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๐ SIMILAR VOLUMES
## Abstract Carbonโ13, carbonโ13 oneโbound and longโrange coupling constants are determined for anthracene and 9,10โdihydroanthracene labelled in the 9,10โpositions, and for thiophthalic anhydride and phthalimide, labelled in both carbonyl groups. Relative signs are determined by the SDL method. Si
## Abstract A convenient small scale chemical synthesis of double labeled folic acid with ^13^C at positions Cโ7 and Cโ9 is reported. [1,3โ^13^C~2~] acetone was converted into folic acid in two steps, with [1, 1, 3]โtrichloroacetone as the labeled intermediate.
## Abstract The ^13^C chemical shift of the substituted or functionalized carbon of various medium and large rings is plotted against ring size (6โ15 carbons). The curves thus obtained allow a conformational analysis of the corresponding derivatives.