HCID 54030327, compound → HCID 14722316, compound

Participants

Reaction Steps

6.5 g of 3-(3-methylsulfonylamino-4-phenoxyphenoxy)-3-methylacrylic acid was suspended in 200 ml of ethanol. Thereto was added 1.3 g of 10% palladium-carbon. The mixture was subjected to hydrogenation at 40°-50° C. at atmospheric pressure. After the completion of the reaction, the catalyst was removed by filtration and the solvent was removed by distillation under reduced pressure. The resulting crystal was recrystallized from toluene to obtain 5.69 g (yield: 87%) of 3-(3-methylsulfonylamino-4-phenoxyphenoxy)-3-methylpropionic acid having a melting point of 121°-124° C.

Provenance & Evidence