Conversion of 3-cyclopentenyl hydroperoxide into 5-substituted-2,3-dioxabicyclo[2.2.1]heptanes
作者:A.J. Bloodworth、H.J. Eggelte
DOI:10.1016/s0040-4039(00)93668-2
日期:1980.1
3-Cyclopentenyl hydroperoxide has been prepared from cyclopentadiene via hydroboration and autoxidation. Bromination of followed by treatment with an appropriate silversalt has afforded the 5-substituted-2,3-dioxabicyclo[2.2.1] heptanes (-bromo), (-bromo), and (-trifluoroacetoxy).
Reassignment of configurations for 5-bromo-2,3-dioxabicyclo[2.2.1]heptanes and its mechanistic implications
作者:A.J. Bloodworth、H.J. Eggelte
DOI:10.1016/0040-4039(81)80179-7
日期:1981.1
The configuration of the 5-bromo-2,3-dioxabicyclo[2.2.1]heptane obtained by treating 3,4-dibromocyclopentyl hydroperoxide with AgO2CCF3 and that of the isomer obtained using Ag2O have been reassigned after identifying which 4-bromocyclopentane-1,3-diol is obtained from each upon catalytic hydrogenation. This implies a bromonium ion mechanism for the AgO2CCF3-induced dioxabicyclization in contrast to