Hydrochloric Acid → 9-Fluorononanoic acid

A solution of methyl 9-fluorononanoate (17.1 g, 90 mmol) in 1,4-dioxane (45 mL) was treated drop-wise with a solution of lithium hydroxide (2.4 g, 100 mmol) in water (15 mL). The reaction mixture was stirred at ambient temperature until no starting material remained by thin layer chromatography. The reaction mixture was acidified to pH 1.0 with 2N hydrochloric acid and extracted with diethyl ether. The combined organic phase was washed with water, dried over anhydrous sodium sulfate, filtered, through a short pad of silica gel, and the filtrate evaporated in vacuo to yield 9-fluorononanoic acid (12.75 g, 72 mmol) as a clear, colorless oil, which solidified on standing in the refrigerator. The product was used without further purification.

1. extractionextracted with diethyl ether
2. washThe combined organic phase was washed with water
3. dry with materialdried over anhydrous sodium sulfate
4. filtrationfiltered, through a short pad of silica gel
5. customthe filtrate evaporated in vacuo

ORD record

ord-ee0b41914faa47ed9f1d7393a10ca936

Source dataset

uspto-grants-2002_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06451814B1