Preparation and acetalization of cyclo-oct-5-ene-1,2-dione
Abstract
Oxidation of cyclo-oct-5-ene-trans-1,2-diol with dimethyl sulphoxide and acetic anhydride gives cyclo-oct-5-ene-1,2-dione, which with ethylene glycol and toluene-p-sulphonic acid forms a monoacetal and two diacetals, whose structures have been assigned on the basis of deacetalization experiments and mass and 1H n.m.r. spectroscopy.