Photochemical rearrangements of cross-conjugated cyclohexadienones—VII
作者:P.J. Kropp
DOI:10.1016/s0040-4020(01)98355-3
日期:1965.1
concerning its intermediacy in the previously reported rearrangement of the dienone (I) to the linearly conjugated isomer (IX). The spiro dienone (VIII) was prepared by solvolysis of the tosylate (XVI). On irradiation in methanol or dioxane it was converted principally to the cyclopropyl ketone (IV), which, in turn, underwent further rearrangement to the dienone (IX). No evidence for the formation of