3 research outputs found
Absolute Configuration and H-1 NMR Characterization of Rosmaridiphenol Diacetate
No full textUniv Talca, Inst Quim Recursos Nat, Talca, ChileThe correction of patented structure 1 of rosmaridiphenol, an antioxidant isolated from rosemary, Rosmarinus officinalis, was made recently. The correct structure is proposed as 11,12-dihydroxy-8,11,13-icetexatrien-l-one (2a) based on 2D NMR data. In order to further support the structure, this work reports the single-crystal X-ray analysis, the complete H-1 NMR assignment by full spin-spin simulation, and the absolute configuration of the diacetate 2b derived via vibrational circular dicroism measurements in comparison with density functional theory calculated data
