ethyl N-anilinocarbamate

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into 200 ml of ethanol were poured 21.6 g (0.2 mol) of phenylhydrazine and 30 ml of triethylamine, and 21.6 g (0.2 mol) of ethyl chloroformate was slowly added dropwise thereto. After the addition, the mixture was refluxed for 30 minutes and then poured into ice-water. The mixture was extracted with ethyl acetate, and the extract was concentrated and purified by column chromatography to obtain 31 g of N-phenyl-N'-ethoxycarbonylhydrazine as an oily substance. was slowly added dropwise After the addition the mixture was refluxed for 30 minutes The mixture was extracted with ethyl acetate the extract was concentrated purified by column chromatography

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into 200 ml of ethanol were poured 21.6 g (0.2 mol) of phenylhydrazine and 30 ml of triethylamine, and 21.6 g (0.2 mol) of ethyl chloroformate was slowly added dropwise thereto. After the addition, the mixture was refluxed for 30 minutes and then poured into ice-water. The mixture was extracted with ethyl acetate, and the extract was concentrated and purified by column chromatography to obtain 31 g of N-phenyl-N'-ethoxycarbonylhydrazine as an oily substance. was slowly added dropwise After the addition the mixture was refluxed for 30 minutes The mixture was extracted with ethyl acetate the extract was concentrated purified by column chromatography