Anodic oxidation in a solution containing a variety of olefins and a small amount of Mn(OAc)2.4H2O brought about Mn+3-mediated carbon-carbon bond formation, such as efficient carboxymethylation of styrene derivatives to the corresponding gamma-aryl-gamma-butyrolactones, and selective coupling of active methylene compounds with non-activated monoolefins, unconjugated dienes or 5-arylpent-1-enes.
SHUNDO, RYUSHI;NISHIGUCHI, IKUZO;MATSUBARA, YOSHIHARU;HIRASHIMA, TSUNEAKI, CHEM. LETT.,(1990) N2, C. 2285-2288