反応 #11194

反応方程式

Mesylate

2-(4-(2-Chlorophenyl)-9-hydroxy-1,3-dioxo-2,3-dihydropyrrolo[3,4-c]carbazol-6 (1H)-yl)ethyl methanesulfonate

thiophenol

triethylamine

→

carbazole

収率 27.0%

4-(2-Chlorophenyl)-9-hydroxy-6-[2-(phenylsulfanyl)ethyl]pyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione

収率 27.0%

溶媒

water

反応条件

後処理

1. 1
   workup.ADDITIONwas added
2. 2
   抽出by extracted of the compound with with ethyl acetate
3. 3
   その他The organic layer was dried
4. 4
   その他the drying agent was removed
5. 5
   濃縮the solution was concentrated to dryness
6. 6
   その他The organic layer was dried
7. 7
   その他the drying agent was removed
8. 8
   濃縮the solution was concentrated to dryness

実験手順

Mesylate (229) (55 mg, 0.11 mmol) prepared as decribed in example 171 was reacted with excess thiophenol (0.10 mL) according to the procedure described in example 179, except that triethylamine (2.0 mL) was added and the reaction was heated at 110° C. for 4 days. Addition of water was followed by extracted of the compound with with ethyl acetate. The organic layer was dried, the drying agent was removed and the solution was concentrated to dryness. The organic layer was dried, the drying agent was removed and the solution was concentrated to dryness followed by chromatography on silica eluting with ethyl acetate/hexane (1:4 to 1:1) to give carbazole (242) (16 mg, 27%) as an orange powder, mp 262–264° C. 1H NMR δ [(CD3)2SO] 11.04 (br s, 1H), 9.37 (br s, 1H), 8.34 (d, J=2.5 Hz, 1H), 7.58 (m, 1H), 7.46 (m, 5H), 7.19 (m, 2H), 7.12 (m, 3H), 7.05 (m, 1H), 4.66 (t, J=6.4 Hz, 2H), 3.46 (t, J=6.4 Hz, 2H). Found: C, 63.64; H, 4.09; N, 4.98. C28H19ClN2O3S.1¾H2O requires: C, 63.39; H, 4.28; N, 5.28.

出典