2.0
[]. Eva-Maria Tanzer, et al. Fluorinated organocatalysts for the enantioselective epoxidation of enals: molecular preorganisation by the fluorine-iminium ion gauche effect. Chemistry. 202 Sep ;8(6):4-42.
H5-H9-H5
P26-P264-P27-P280-P02+P52-P04+P40-P62+P64-P405-P50