Question

5 and 6 are true and false questions.

5. AlCl3 acts as a Lewis acid in Friedel-Craft acylations 6. The acylium ion intermediate in Friedel-Craft acylations do not undergo rearrangements. Multiple Choice _7. Which of the following will react with Cl2/AlCl3 at the fastest rate? A. Benzoic acid B. toluene C. bromobenzene D. anisole

Answer 1

- as Lewis Aud in friedal Solution: Any) 5) True. Alch act O Craft Alkylation Egin Reaction :- (product) Hal (REAlkyl Sov) 1 Ang) 6) Ang) b) True. Acylium ion formed is stable and not undergoes rearrangement Mech. r o R-c-ceir t ia al-ci J--8: Rc-ce-Al-ci [p-c=0 to Rodo] + Arcłu ... stable due to (resonance) > O n oder Alc HCO

ID Reation of " (Alch with substituted is electrophilic Aromatic substitution. Benzene ring with high electrom density in benzene ring will react. farster- a Anisole has highest election density in benzene sing and would react at faster rate... Co-Cha Cha 8-cus eorcha pro3 (Anisole) election density high in benzene. sing and reaction would occur at faster rate. occurs via hypercon- . CH3 (Toluene) → Electron donation jugation I B ). Bromobenzene deactivate ring due to - I on • Benzoic Acid has least reactivity towards - cl2/All dare to am of -cos : group. : Anisole > Toluene > Bromo benzone order of Reactivity Benzoic Acid Ansi Anisole
Please give me better rattings.

Thank gou.