To make a dihalo-olefin from an alkyne, should the halogen be added to the alkyne, or vice versa?
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1 Answer
Sep 12, 2016
Clearly, the bromine should be ADDED to the alkyne.
Explanation:
An alkyne could potentially react with 2 equiv of halogen. A priori, we would predict that a reaction where the alkyne was in excess (i.e. the bromine added to bulk alkyne) was the preferred method.
In the reverse addition, more than the 1 equiv of
