Potassium Carbonate → 2-(12H-11,12-diazaindeno[2,1-a]fluoren-11-yl)benzenethiol

Participants

Reaction Conditions

Reaction Steps

25 g (96.6 mmol) of 11,12-dihydroindolo[2,3-a]carbazole are added to 12.5 g (48 mmol) of 2-iodobenzenethiol in 80 ml of di-n-butyl ether, and the solution is degassed. 6.6 g (0.105 mmol) of copper powder, 0.92 g (0.003 mmol) of copper(I) iodide and 14.6 g (106.6 mmol) of K2CO3 are subsequently added to the mixture, which is then stirred at 144° C. under protective gas for 4 days. The organic phase is dried over MgSO4, and the solvent is removed in vacuo. The residue is recrystallised from acetone and finally sublimed in a high vacuum. Yield: 22.5 g (61 mmol), 66% of theory, purity according to HPLC 89.4%.

Provenance & Evidence