Sodium Hydroxide → HCID 13290028, compound

Participants

Reaction Steps

A mixture of 4.47 g of ethyl[(6,7-dichloro-2-phenylbenzo[b]thien-5-yl)oxy]acetate and 150 ml of 95% ethanol was treated with 150 ml of 20% sodium hydroxide solution. The mixture is refluxed for 3 hours and concentrated in vacuo to remove ethanol. Acidificaton at 0°-10°, followed by ether extraction, yields 3.9 g of [(6,7-dichloro-2-phenylbenzo[b]thien-5-yl)oxy]acetic acid as white needles, mp 209°-211°.

Provenance & Evidence