[N:1]1([CH2:6][CH2:7][CH2:8][C:9]2[CH:10]=[C:11]3[C:15](=[CH:16][CH:17]=2)[NH:14][C:13]([CH2:18][OH:19])=[CH:12]3)[CH2:5][CH2:4][CH2:3][CH2:2]1>ClCCl.C1(C)C=CC=CC=1.[O-2].[Mn+4].[O-2]>[N:1]1([CH2:6][CH2:7][CH2:8][C:9]2[CH:10]=[C:11]3[C:15](=[CH:16][CH:17]=2)[NH:14][C:13]([CH:18]=[O:19])=[CH:12]3)[CH2:5][CH2:4][CH2:3][CH2:2]1Manganese (IV) oxide (4.7 g, 54 mmol) was added to a mixture of [5-(3-pyrrolidin-1-yl-propyl)-1H-indol-2-yl]-methanol (940 mg, 3.6 mmol) in dichloromethane (150 mL) and toluene (150 mL). The mixture was stirred at room temperature for overnight. The reaction was filtered through a pad of celite and the filtrate was concentrated to give 670 mg (72%) of 5-(3-pyrrolidin-1-yl-propyl)-1H-indole-2-carbaldehyde.
Wird geladen…