Friedel-Crafts Reactions-II Acl C-CH3 +H3Cc·cl hcl a Nucleophile H3C-C=0 H3CC-cAcl3一 alcl H2C- C=O an Electrophile7 Friedel – Crafts Reactions-II + C O + HCl AlCl 3 a Nucleophile O H 3C Cl C CH 3 AlCl 3 O H 3C Cl C H 3 C C H 3 C C O O + AlCl 4 an Electrophile