Additions and corrections
Catalytic asymmetric epoxidation with a chiral ruthenium porphyrin and N-oxides
Albrecht Berkessel and Matthias Frauenkron
J. Chem. Soc., Perkin Trans. 1, 1997, 2265
In Scheme 1 the formula of the R* group in catalyst 3 shows the opposite enantiomer to that used in the epoxidation experiments. The correct formula is shown below.