반응 #306241

반응 방정식

4,4′-dibromo-2,2′-diaminobiphenyl

NaHCO3

→

2,7-dibromocarbazole

수율 66.2%

용매

phosphoric acid

반응 조건

후처리

1. 1
   온도The reaction mixture was cooled to room temperature
2. 2
   기타to form a solid
3. 3
   여과Then, the solid was filtered

실험 절차

4,4′-dibromo-2,2′-diaminobiphenyl (3.5 g, 10.23 mmol) was dissolved in phosphoric acid and heated at 190° C. for 24 hours. The reaction mixture was cooled to room temperature and then NaHCO3 (aq) was gradually added thereto to form a solid. Then, the solid was filtered to obtain 2,7-dibromocarbazole (2.2 g, 66%), the compound represented by formula e. MS [M+] 323.

출처