Conformational isomerism of phenolic procyanidins : preferred conformations in organic solvents and water

@inproceedings{Hatano2004ConformationalIO,
  title={Conformational isomerism of phenolic procyanidins : preferred conformations in organic solvents and water},
  author={Tsutomu Hatano and Richard W. Hemingway},
  year={2004}
}
NMR studies of catechin-{40-.+8)-epicatechin (I) and catechin-{40-.+8)-catechin (2) provided complete assignment of the proton and carbon resonances for both the more extended and compact conformers in the free phenolic form. When I is in organic solvents, the more extended rotamer is preferred over the more compact rotamer (10:7), but in water, the compact rotamer dominates (2: 10). When 2 is in organic solvents, the more compact rotamer is slightly preferred (8: 10), but in water, only trace… CONTINUE READING
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