Acetic Acid → Formylamino-thiophen-2-yl-acetic acid

Participants

Reaction Steps

To a solution of amino-thiophen-2-yl-acetic acid (5 g) in formic acid (50 ml) was added acetic acid (18 ml). After stirring at room temperature for 6 h, water (25 ml) was added. The reaction mixture was stirred for 30 min. The mixture was concentrated in vacuo and triturated with water. The solids were collected by filtration and dried in vacuo (50° C.).

Provenance & Evidence