halonium ion

Problem # 521

Let's work through a halogenation reaction. Draw the structures for each of the species in the four boxes below (3º carbocation, halonium ion, protonated thiol, and thiol). Also draw curved arrows to show electron movement. Note: thiol = RSH, like an alcohol, but with sulfur instead of oxygen.

Problem # 343

For the reaction below, draw the structures of the chloronium ion intermediate and the final product.