Sodium ethoxide → HCID 67725831, compound

Participants

Reaction Steps

An ethanolic solution of 90 mg of sodium ethoxide was dropped into an ethanolic solution containing 650 mg of 3-dimethylamino-2-nitrobenzyltriphenylphosphonium bromide and 320 mg of 3-(4-phenyl-1H-imidazol-1-yl)propionaldehyde. The obtained solution was heated under reflux for 2 hours to conduct a reaction. After the completion of the reaction, the mixture was distilled to remove the solvent. The residue was extracted with 2N NaOH and the obtained aqueous layer was made acidic again with 1N HCl and extracted with ethyl acetate. The ethyl acetate layer was washed with a saturated aqueous solution of common salt, dried over magnesium sulfate and distilled to remove the solvent. The obtained oily substance which is a mixture of cis- and trans-isomers was purified by silica gel chromatography to give 220 mg of 3-[4-(4-phenyl-1H-imidazol-1-yl)-1-cis-butenyl]-2-nitro-N,N-dimethylaniline. 430 mg of zinc was added to a solution of this product in acetic acid to give 2-dimethylamino-6-[4-(4-phenyl-1H-imidazol-1-yl)-1-Cis-butenyl]aniline as an oily substance. This oily substance was dissolved in chloroform, followed by the dropwise addition of 50 mg of butyl isocyanate. The obtained mixture was heated under reflux for 2 hours to conduct a reaction. After the completion of the reaction, the obtained reaction mixture was concentrated to precipitate a crystal. This crystal was recrystallized from an ethyl acetate/hexane mixture to give 190 mg of the title compound.

Provenance & Evidence