Sodium Carbonate → HCID 66797678, compound

Participants

Reaction Steps

20 g (38.6 mmol) of 10-(2,6-dibromopyridin-4-yl)-12,12-dimethyl-10,12-dihydro-10-azaindeno[2,1-b]fluorene and 10.4 g of 3-pyridineboronic acid (84.9 mmol) are suspended in 400 ml of ethylene glycol dimethyl ether. 85 ml of a 2 M Na2CO3 solution are added to the reaction mixture. 2.23 g (1.93 mmol) of Pd(PPh3)4 are added to this suspension. The reaction mixture is heated under reflux for 12 h. After cooling, the precipitated solid is filtered off with suction, washed with water and ethanol and dried. The residue is extracted with hot toluene, recrystallised from toluene and finally sublimed in a high vacuum, the purity is 99.9%. Yield: 12 g, 60% of theory.

Provenance & Evidence