a: Alkene ~
b: a flat surface
What: "To achieve the asymmetric epoxidation, the starting material, the alkene may bear a prochiral plate. Imagine the alkene is like a flat surface. The oxygen can attack the plate from the top or from the button. You can imagine there will be a mirror image between the two resultant compounds if the oxygen approached from both sides. "
Where: Reference Link Has Evaporated
Date: Jul 15 2013 6:26 PM
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