Sp. Chavan et al., NOVEL OXIDATIVE CONVERSION OF BETA-GAMMA-UNSATURATED ACIDS INTO BUTENOLIDES - SYNTHESIS OF HERITONIN AND HERITOL, Journal of the Chemical Society, Chemical Communications, (9), 1994, pp. 1101-1102
A novel strategy of converting beta,gamma-unsaturated esters to buteno
lides involving oxidative cyclisation with ceric ammonium nitrate at r
oom temperature is described.