Sodium Carbonate → HCID 58623482, compound

Participants

Reaction Conditions

Reaction Steps

Next, 8 g (0.038 mol, 1 eq) of the obtained 5-propyl-2,2′-bithiophene was introduced into a three-necked flask, and this was flushed with Ar. To this, 100 ml of THF was added, stirred and cooled to 0° C. To this, 7.4 g (0.042 mol, 1.1 eq) of NBS was added directly. Then, the temperature was returned to the room temperature, and stirred for 12 hours. To this, 10% sodium carbonate aqueous solution was added, this was extracted with diethyl ether, water washed until pH is 7, and dehydrated with Na2SO4. After removing Na2SO4 by filtration, the solvent was removed. This was purified by silica gel chromatography, and specified substance of 5-bromo-5′-propyl-2,2′-bithiophene (3 in the chemical reaction formula) was obtained. Yielding quantity was around 8.8 g, and yielding percentage was around 80%.

Provenance & Evidence