Question

· Draw the mechanism of the reaction between toluene and isopropyl chloride in the presence of AlCl3 to give 4-isopropyl toluene. (7 points) CI AICI: +

Answer 1

Step in : BR- Explaination Step-I: o chlorine atom of isopropyl chloride is abstract by Alclz because 'All is electo positive atom. 2 2 formed carbocation is stabilies by secondary carbon where both methyl group has cth cthy t effect لہ tI effect means they donate electon Step I Ô Hidrogen of abstract by Allla para position is because

methyl group Doup of toluene it has ta effect. so that methyl group is ortho ortho i paradirecting 3 © ortho, para directing meano directing means attack of cation Possible only Parra position, at ortho or 4 Here, para product is formed because at can not be ortho Position buicky group attack because storic hindrance