RING CLEAVAGE AND RECONSTRUCTION OF FIVE AND SIX MEMBERED RING

Article abstract of DOI:10.1016/S0040-4039(00)95516-3

Under the acetalization conditions using BF3-etherate/ethylene glycol, cyclopentanones and cyclohexanones with the carbonyl function at the C3- or C4-position of the β-side chain undergo the facile ring cleavage to reconstruct the new ring.