73902-05-3Relevant articles and documents
Acid-catalyzed rearrangement of cyclobutanones. V. Preparation of polycyclic aromatic dihydrofurans and dihydropyrans
Duperrouzel, Paul,Lee-Ruff, Edward
, p. 51 - 54 (2007/10/02)
Cyclobutanones derived from α-phenyl, α,α-diphenyl, and bisphenyleneketene cycloaddition to dihydrofuran and dihydropyran were rearranged under acidic conditions to polycyclic aromatic dihydrofurans and dihydropyrans ,respectively.A mechanism for these rearrangements is proposed.