Sapling Problem Number 3 From Chapter 6

Chapter 6 Problem 3

Chapter 6 is the alkene reactions with different reagents. For number 3, on the homework in sapling, you were supposed to draw the arrows for the alkene reaction with HCl.

Step 1: The electrons from the double bond go toward the H on the HCl. At the same time, the bond between the H and Cl are broken. This gives you the carbocation and Cl ion.

                                                                           Step 2

Step 2: The carbocation forms on the most stable carbocation. The carbocation is the place where the Cl ion will attach to once the reaction is complete. The most stable carbocation is a tertiary carbocation. The arrow is drawn from the minus on the Cl to the plus on the carbocation to show the electrons forming a bond with the  positive charge on the tertiary carbon.

Conclusion: The reaction of an alkene and HCl will lead to an alkane with the halogen on the more substituted carbon in the alkene.


                                                              Sources

This problem was found on the Sapling Website for Chapter 6 Alkene Reactions.