OXIDATIVE ADDITION OF 1,3-DICARBONYL COMPOUNDS TO ALKENES MEDIATED BYCERIUM(IV) AMMONIUM-NITRATE AND MANGANESE(III) ACETATE - A COMPARATIVE-STUDY

The oxidative addition of dimedone, acetylacetone and ethyl acetoaceta te to cyclic and acyclic alkenes mediated by CAN gives dihydrofurans i n good yields, Similar addition of the radical generated from dimethyl malonate to alkenes provides lactones. A comparative study of these r eactions vis-a-vis those mediated by Mn(OAc)(3) has shown that the for mer generally lead to higher yields of products. The milder reaction c onditions, experimental simplicity, and the solubility of CAN in commo n organic solvents like methanol, acetonitrile and THF are other advan tages. Thus it appears from this study that CAN is superior to the com monly used Mn(OAc)(3).