Ipso-chlorination of 4-alkylphenols ethers a novel route to 4-chlorocyclohexa-2,5-dienones.
摘要:
Selective chlorination of 4-alkylphenols ethers with SbF5/CH2Cl2 (CHCl3, CCl4) yields 4-chlorocyclohexa -2,5-dienones; no alpha-chlorination to a carbonyl group is observed in the reaction conditions.