反应详情

Quinoline (54 μL) and a Lindlar catalyst (54 mg) were added to a stirred solution of [3-(3-hydroxyprop-1-ynyl)phenoxy]acetic acid tert-butyl ester (547 mg, 2.09 mmol) in methanol (4.3 mL) under a nitrogen atmosphere. The mixture was stirred for 1 hour in a balloon filled with hydrogen, filtered, and the filtrate was taken to dryness. The residue was purified by flash chromatography, eluting with hexane/ethyl acetate, dissolved in diethyl ether, and washed with 2 N hydrochloric acid (10 mL) and 10% sodium bicarbonate, dried over sodium sulfate, and concentrated to give cis-[3-(3-hydroxypropenyl)phenoxy]acetic acid tert-butyl ester as a colorless oil (420 mg, 76%).

1. filtrationfiltered
2. customThe residue was purified by flash chromatography
3. washeluting with hexane/ethyl acetate
4. dissolutiondissolved in diethyl ether
5. washwashed with 2 N hydrochloric acid (10 mL) and 10% sodium bicarbonate
6. dry with materialdried over sodium sulfate
7. concentrationconcentrated