[Cl-].[NH4+:2].[N+:3]([C:6]1[CH:11]=[CH:10][C:9]([C:12]2[C:20]3[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=3)[NH:14][C:13]=2[C:21]([O:23]CC)=O)=[CH:8][CH:7]=1)([O-:5])=[O:4]>N>[N+:3]([C:6]1[CH:7]=[CH:8][C:9]([C:12]2[C:20]3[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=3)[NH:14][C:13]=2[C:21]([NH2:2])=[O:23])=[CH:10][CH:11]=1)([O-:5])=[O:4]A solution of 0.5 g of ammonium chloride in 30 ml of concentrated aqueous ammonia is added to a solution of 3.3 g of ethyl 3-(4-nitrophenyl)-1H-indole-2-carboxylate in 50 ml of 7N methanolic ammonia. The solution is then heated in a sealed tube at 125° C. for 15 hours. After cooling, the solid formed is filtered off, washed with water, and then filter-dried. After drying under vacuum, 1.5 g of 3-(4-nitrophenyl)-1H-indole-2-carboxamide are obtained, the characteristics of which are as follows:
Wird geladen…