A complete structural and conformational investigation of procyanidin A2 dimer
β Scribed by Nicolas Vivas; Yves Glories; Isabelle Pianet; Bernard Barbe; Michel Laguerre
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 195 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0040-4039
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The 'H NMR spectra of [S]metacyclophane C&t, and of its 8,11-dichloro derivative & are reported. 2 Has a rigid conformation A between -50 and +150Β°C. Conformation A is also the preferred one (85%) for l& at -47 OC, but l&,-A is in equilibrium with a second conformer l&-B, for which spectral paramete