Sodium Hydroxide → HCID 19004389, compound

Participants

Reaction Steps

As in example 10, a solution of 4-[3-[4-acetyl-3-methoxy-2-propylphenoxy)propoxy]-alpha-oxobenzeneacetic acid ethyl ester (0.4 g) in methanol (30 mL) was treated with 2N sodium hydroxide (0.25 mL) was stirred at room temperature for 4 hours. Most of the solvents were removed in vacuo, water was added, then the mixture was acidified with 3N hydrochloric acid and extracted with dichloromethane-tetrahydrofuran (1:1). The dried (MgSO4) extracts were evaporated and the crude oil was purified by flash chromatography over silica gel (toluene-ethyl acetate-acetic acid; 75:25:0.5 increasing to 74:25:1) and crystallized from diethyl ether-hexane to provide 0.13 g of 4-[3-[4-acetyl-3-methoxy-2-propylphenoxy)propoxy]-alpha-oxobenzeneacetic acid, mp 94°-96° C.

Provenance & Evidence