An enantio- and stereo-controlled synthesis of<scp>L</scp>-erythro- and<scp>D</scp>-threo-C<sub>18</sub>-sphingosines via the anomalous version of the katsuki–sharpless asymmetric epoxidation reaction
A new enantiocontrolled synthesis of L-erythro- and D-threo-sphingosines has been established starting from (R,R)- and meso-1,2-divinylethylene glycols via the anomalous version of the KatsukiâSharpless asymmetric epoxidation reaction as the key step.