S. Dhanalekshmi et al., CATION RADICAL-INDUCED CLAISEN REARRANGEMENT OF ARYL ALLENYLMETHYL ETHERS, Journal of the Chemical Society, Chemical Communications, (4), 1994, pp. 511-512
Treatment of aryl allenylmethyl ethers with tris(4-bromophenyl)aminium
hexachloroantimonate in acetonitrile at room temperature induces a fa
cile cation radical induced Claisen rearrangement to yield 2-(o-hydrox
yaryl)buta-1,3-dienes.