Br.Br.[NH2:3][CH2:4][C:5]1[CH:19]=[CH:18][C:8]([C:9]([NH:11][C:12]2[CH:13]=[N:14][CH:15]=[CH:16][CH:17]=2)=[O:10])=[CH:7][CH:6]=1>N>[NH2:3][CH2:4][C:5]1[CH:6]=[CH:7][C:8]([C:9]([NH:11][C:12]2[CH:13]=[N:14][CH:15]=[CH:16][CH:17]=2)=[O:10])=[CH:18][CH:19]=1A suspension of dihydrobromide salt 32 (1 mmol) in dilute aqueous ammonia solution (50 mL) was extracted into CHCl3 (3×50 mL), the organic fraction dried and the solvent evaporated to give crude benzamide 33 which was used directly.
Wird geladen…