Thermal and Photochemical Rearrangements of Cyclopropyl Ethers of p-Quinols. Competing Reaction Pathways Leading to Five- and Six-Membered Ring Spirocyclic Ketones

Article abstract of DOI:10.1021/jo00047a006

Cyclopropyl ethers of p-quinols were prepared by reaction of 3''-methylenedispiro<1,3-dioxolane-2,1'-<2,5>cyclohexadiene-4',1''(3''H)-isobenzofuran> and the associated ketone with ethyl diazoacetate/rhodium(II) acetate and diethylzinc/methylene iodide, re