AN INTRAMOLECULAR DARZENS REACTION OF THE ESTER GROUP WITH THE ACTIVE HALOGEN GROUP. PREPARATION OF 2,7-DIOXABICYCLOHEPTANES.

Article abstract of DOI:10.1016/S0040-4039(00)96567-5

When 1-bromo-4-acyloxybutanes having electron-withdrawing groups at 1-position, which were obtained by Cu(I)-catalyzed photochemical addition of 1-bromo-2-acyloxyethanes to electron-deficient olefins, were subjected to treatment with potassium t-butoxide,