3 a ) and (3c) or (Sf) formed as minor products on reaction ( I ) with methyl acryiate or methyl propiolate were synthesized isomer-free from the diester (1') and characterized. The data for the compounds prepared are summarized in Table .
Conformational analysis of 3-aminothiacyclohexane and derivatives by low-temperature 13C NMR
✍ Scribed by Ernesto Brunet; Paloma Azpeitia; W.R. Kenan Jr.
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- French
- Weight
- 870 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0040-4020
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📜 SIMILAR VOLUMES
## Abstract The ^13^C chemical shift of the substituted or functionalized carbon of various medium and large rings is plotted against ring size (6–15 carbons). The curves thus obtained allow a conformational analysis of the corresponding derivatives.
## Abstract The carbon‐13 spectra of seventeen bicyclo[3.1.1]‐heptane derivatives have been recorded and assigned. Study of the C‐6 and C‐7 chemical shifts permits the conformations to be assigned to the bridged chair, Y‐shaped, or bridged boat conformations. The spectrum of verbenone is anomalous
## Abstract The ^13^C spectra of α‐thujene (**1**), isothujone (**2**), (−)isothujol (**3**), (+)neoisothujol (**4**), sabinol (**5**), dihydroumbellulone (**6**) and umbellulone (**7**) and the alcohol acetates are recorded and assigned. The C‐6 chemical shift may be used in conjunction with the s