Water → (2,2':5',2''-Terthiophene)-5-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

0.27 g of 5-formyl-2,2':5',2"-terthiophene was dissolved in 50 ml of acetone and the temperature thereof was maintained at 15° C. CrO3 /H2O/H2SO4 solution (0.9 g/12 ml/0.2 ml) was dropped in slowly and stirred for 4 hours at 40° C. Then 50 ml of water was dropped in slowly, and the solution was filtered, washed with water, dried and a yellowish solid was thus obtained. After washed with chloroform, 150 mg of product was obtained and the melting point thereof was 239°-240° C. (yield: 51%).

Provenance & Evidence