N-bromobutanimide → 3-Bromo-9-(naphthalen-1-yl)-9H-carbazole

Reaction equation

[C:1]1([N:11]2[C:23]3[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=3[C:17]3[C:12]2=[CH:13][CH:14]=[CH:15][CH:16]=3)[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.[Br:24]N1C(=O)CCC1=O>C1(C)C=CC=CC=1.C(OCC)(=O)C>[Br:24][C:20]1[CH:21]=[CH:22][C:23]2[N:11]([C:1]3[C:10]4[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=4)[CH:4]=[CH:3][CH:2]=3)[C:12]3[C:17]([C:18]=2[CH:19]=1)=[CH:16][CH:15]=[CH:14][CH:13]=3

Participants

Procedure

In a 200-mL conical flask, 5.9 g (20 mmol) of 9-(1-naphthyl)-9H-carbazole was dissolved in a mixture solvent of 50 mL of toluene and 70 mL of ethyl acetate, and then 3.6 g (20 mmol) of N-bromosuccinimide (abbreviation: NBS) was added to this solution. The mixture was stirred at room temperature for 36 hours. After completion of the reaction, this mixture solution was washed with water, and magnesium sulfate was added thereto so that moisture was adsorbed. This suspension was filtrated, and the obtained filtrate was concentrated and collected. As a result, 7.4 g of white powder that was an objective substance was obtained in a yield of 99%. The synthesis scheme of Step 1 is shown in (F6-1).