Rearrangements of the 2,6-diaryl-3,7-dioxabicyclo[3.3.0] octane skeleton, part III. Reaction of gmelinol with BF3-etherate and N,N-dimethylaniline

Two New 2‐Phenylethyl Alcohol Derivatives and One New Lignan Derivative from the Root of Ilex pubescens

“…3). The cis-orientation of HÀC (3) and HÀC(4) to each other was established from the coupling constant of HÀC(4) (J ¼ 6.5 Hz) by comparison with the values reported for cycloolivil (trans-orientation, J ¼ 10.0 Hz) [8] and di-O-methyl epicycloolivil (cis-orientation, J ¼ 5.5 Hz) [10]. In addition, the observed NOE correlations (Fig.…”