NaOH / H2O This nucleophilic substitution occurs with rearrangement. Draw curved arrows to show the movement of electrons in the following step of the reaction mechanism.
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The lone pair of electrons on the oxygen atom of the water molecule (H2O) will attack the carbon atom that is attached to the iodine atom (I). This is because the carbon atom is partially positive due to the electronegativity of the iodine atom. Show more…
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Another mechanism for the formation of epoxides is through the formation of a chlorohydrin. Alkenes react with chlorine in the presence of H2O to give a chlorohydrin via a cyclic chloronium ion intermediate. When the chlorohydrin is treated with strong base, HCl is eliminated and the epoxide is formed. Draw curved arrows to show the movement of electrons in this step of the mechanism.
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Sri K.
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