Cyclopropanation reactions with α, β-epoxy diazomethyl ketones and rearrangement of α, β-epoxy cyclopropyl ketones
作者:F.L.M. Smeets、L. Thijs、B. Zwanenburg
DOI:10.1016/0040-4020(80)80175-x
日期:1980.1
cyclopropanation reactions of α, β-epoxy diazomethyl ketones 1 with olefins using Pd(OAc)2 as catalyst is described. Differently substituted epoxy diazo ketones 1a-1f give with cyclohexene exo-norcarane derivatives. 3, 3-Diphenyloxiranyl-2 diazomethyl ketone 1a reacts with olefins like isobutene, E- and Z- butene-2 to give epoxy cyclopropyl ketones. 3, 3-Diphenyloxiranyl-2 cyclopropyl ketones 2a and 9 undergo two