benzylamine anschliessenden Erhitzen mit wss.H2SO4;

1-methyl-pyrrolidin-2-one; N,N'-dimethyl-N,N'-propyleneurea; α-bromo-α,α-dimethylacetamide; sodium hydride; caesium carbonate 1.) dioxane, room temperature, 30 min, 2.) reflux, 16 h, 3.) 150 deg C, 72 h; Yield given. Multistep reaction. Yields of byproduct given;

tetrahydrofuran; methanol; nickel Hydrogenation;

1-methyl-pyrrolidin-2-one; N,N'-dimethyl-N,N'-propyleneurea; sodium hydride; caesium carbonate 1.) dioxane, room temperature, 30 min, 2.) reflux, 16 h, 3.) 150 deg C, 72 h; Yield given. Multistep reaction. Yields of byproduct given;