Author/Authors :
Ogawa، نويسنده , , Yasushi and Toyama، نويسنده , , Masahito and Karikomi، نويسنده , , Michinori and Seki، نويسنده , , Katsura and Haga، نويسنده , , Kazuo and Uyehara، نويسنده , , Tadao، نويسنده ,
Abstract :
Both enantiomers of (P)-(+)-2- and (M)-(−)-2-acetoxy-11,14-dimethyl[5]helicenes 8 were synthesized by asymmetric aromatic oxy-Cope rearrangement of the corresponding chiral bridged bicyclic compounds, which were obtained by enzymatic resolution. The absolute configurations of 8 were assigned by their circular dichroism spectra.
