Citation: Pd. Cunningham et al., THE REACTION OF CYCLIC 2-DIAZO-1,3-DICARBONYL COMPOUNDS WITH BETA-LACTONE AND GAMMA-LACTONE - FORMATION OF BENZODIOXEPINONES, BENZODIOXECINONES AND BENZOFURANS, Journal of the Chemical Society. Perkin transactions. I, (1), 1997, pp. 1-4