Three-Component Condensation of Cyclic Enaminoketones, Phenylglyoxal Hydrate and Ethyl Acetoacetate
Polysubstituted functional derivatives of 3,3a,4,5,6,7,8,8a-octahydro-2 H -furo[2,3- b ]indole were obtained by three-component condensation of cyclic enaminones, phenylglyoxal hydrate and ethyl acetoacetate in aqueous ethanol solution.