engleski

A Two-step Asymmetric Synthesis of Pure Trans-(R, R)-Diaryl-epoxides

Pure trans-(R, R)-diaryl-epoxides are obtained in two steps and under aprotic conditions using Eliel's oxathiane as the chiral auxiliary. The enantiomeric excesses, determined by chiral HPLC, are 97.9% to 99.9% and the oxathiane is recovered in 78% to 92% yield and may thus be re-used.

Optically-active epoxides ; Halostachine analog ; Stilbene oxides ; Sulfur ; Ylides

nije evidentirano