The quinone-induced dehydrogenative rearrangement of 1, l-disubstituted 1, 2- dihydronaphthalenes containing phenyl, vinyl, and styryl groups has been studied. The observed order of migratory aptitudes, methyl< phenyl< styryl= vinyl, iR in accord with the hypothesis that the rearrangement involves electrophilic attack by a carbonium ion intermediate.
![(5-oxo-2-phenyl-tetrahydro-[2]furyl)-acetic acid ethyl ester结构式](https://image.chemsrc.com/caspic/036/106379-25-3.png)
