Zirconium(IV) Chloride Catalyzed Cyclization ofortho‐Allylphenols: Synthesis of 2‐Methyl‐2,3‐dihydrobenzofurans
摘要:
Intramolecular cyclization of ortho-allylphenols has been carried out using zirconium (IV) chloride in mild condition. This method avoids the use of expensive reagents and leads to highly functionalized dihydrobenzofurans.