The thermal [3, 3] claisen rearrangement of the 3-substituted phenyl allyl and propargyl ethers. The synthesis of 4-halobenzo[b]furans

Article abstract of DOI:10.3987/rev-98-501

The thermal [3, 3] Claisen rearrangement of the 3-substituted phenyl allyl and propargyl ethers is regioselective. The major product of the reaction incorporates a 1, 2, 3-trisubstituted benzene ring. The 2-allenylphenol intermediates can be manipulated i