Benzoyl chloride → HCID 21313356, compound

Participants

Reaction Steps

Reaction of 4-dimethylaminoaniline with benzoyl chloride in the presence of pyridine and reaction of the resulting N-(4-dimethylaminophenyl)benzamide with sodium hydride in DMF followed by reaction of the resulting sodium salt with chloramine all according to the procedure described above in Example 65 affords N'-benzoyl-4-dimethylaminophenylhydrazine. Reaction of the latter with 3-phthalimidopropyl methyl ketone in refluxing ethanol using the procedure described above in Example 1 affords 1-benzoyl-5-dimethylamino-2-methyl-3-(2-phthalimidoethyl)indole, which on refluxing in ethylene glycol dimethyl ether in the presence of a molar excess of hydrazine hydrate affords 1-benzoyl-3-(2-amimoethyl)-5-dimethylamino-2-methylindole. The latter, on reaction with one mole of isopropyl bromide in refluxing acetone in the presence of sodium carbonate affords 1-benzoyl-3-(2-isopropylaminoethyl)-5-dimethylamino-2-methylindole.

Provenance & Evidence