4-amino-2-chloro-N-ethylbenzamide

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-Chloro-N-ethyl-4-nitrobenzamide (2.00 g) obtained in Example 66a), iron powder (2.43 g) and calcium chloride (0.48 g) were suspended in an aqueous solution (30 ml) of 85% ethanol, and the mixture was refluxed for 1 hr. After cooling to room temperature, the reaction mixture was diluted with ethyl acetate (100 ml), and the insoluble material was removed by filtration through celite. The filtrate was concentrated, and the residue was purified by silica gel column (ethyl acetate/hexane=1/1 to ethyl acetate) to give the title compound as a yellow powder (1.55 g, 90%). the mixture was refluxed for 1 hr the insoluble material was removed by filtration through celite The filtrate was concentrated the residue was purified by silica gel column (ethyl acetate/hexane=1/1 to ethyl acetate)