Sodium hydride → HCID 53696980, compound

Participants

Reaction Conditions

Reaction Steps

A stirred mixture of 4-hydroxy-alpha-oxobenzeneacetic acid methyl ester (2.29 g) in dimethylformamide (30 mL) under argon was treated with 55% sodium hydride (0.552 g), stirred for 15 minutes and treated with the mesylate (4.3 g) prepared from 2-[3-(phenylmethoxy)-2-naphthalenyloxy]ethanol. The mixture was heated under argon at 60° C. overnight. The cooled mixture was treated with glacial acetic acid (2 drops) and the volatiles were removed under vacuum. The residue was mixed with water and extracted with dichloromethane. The organic layer was washed with water, dried (Na2SO4), filtered, and evaporated to give crude product. The material was purified by HPLC (dichloromethane-hexane; 3:1 plus 2% ethyl acetate) to provide, after crystallization from dichloromethane-methanol, 3.0 g of alpha-oxo-4-[[2-[3-(phenylmethoxy)-2-naphthalenyloxy]ethyl]oxy]benzeneacetic acid methyl ester as a colorless solid, mp 115°-117° C.

Provenance & Evidence