WhenFriedei-Carfts alkylastionof benzene is carried outwith 1 equivale – InterviewSolution

1.	WhenFriedei-Carfts alkylastionof benzene is carried outwith 1 equivalent of tert -butyl chloride, a long amountof para-di-tert-butyl benzeneis formed along with monosubstitutionproduct.Why does not all the bezenereact to give tert - butylbenzene(the momo- substitutionproduct )?
Answer» Thetert- bustlysubstituentactivate thebenzeneringto furthersubstitution Thereactionisbimlecular, so twotert-bustlychoridemolecule combinewithone bezenemolecular Thetert-butyl SUBSTITUENT is largeandfavours REACTIONAT PARA -POSITION . Thedisbstitutedproduct is favouredin favouredineqilibriumwith mono-substitutedc ring. Answer :A

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