Which of the following compounds will not undergo Friedel Craft's reaction with benzene ?
← JEE Main 2017 · 8 Apr · Shift 1
ChemistrySingle correct+4 / -1Question 53 of 90
JEE Main 2017 · 8 Apr · Shift 1, Chemistry question 53
Answer and worked solution
Official answer: B
In vinyl chloride the C-Cl bond has partial double-bond character (resonance with the C=C) and the vinyl cation is unstable, so no Friedel-Crafts electrophile forms. The acid chlorides give acylium ions and allyl chloride gives the resonance-stabilised allyl cation.