Oxidation of methyl 2-hydroxy-3-methyl- and methyl 2-hydroxy-3-phenylindolizine-1-carboxylates
Abstract
Oxidation by air or potassium ferricyanide of methyl 2-hydroxy-3-methylindolizine-1-carboxylate and methyl 2-hydroxy-3-phenylindolizine-1-carboxylate gave methyl 2,3-dihydro-3-hydroxy-3-methyl-2-oxo and methyl 2,3-dihydro-3-hydroxy-2-oxo-3-phenylindolizine-1-carboxylate, respectively.