Potassium Hydroxide → HCID 59576369, compound

Participants

Reaction Steps

4-Cyclopentylmethyl-1-(2,4-difluorobenzyl)-1H-pyrrole-2-carboxylic acid ethyl ester (A1-III) was taken in ethanol. To it a solution of potassium hydroxide in water was added and the reaction was refluxed for 18 hrs. Ethanol was evaporated; residue was diluted with water and washed with diethyl ether. The aqueous layer was acidified using dilute HCl and extracted with ethyl acetate. Ethyl acetate layer was washed with brine and dried over anhydrous sodium sulfate. Solvent was evaporated to get 4-cyclopentylmethyl-1-(2,4-difluorobenzyl)-1H-pyrrole-2-carboxylic acid (A1-IV).

Provenance & Evidence