反应详情

温度

-15 °C

A solution of (6Z,16Z)-12-((Z)-dec-4-enyl)docosa-6,16-dien-11-ol 8 (0.5 g, 1.1 mmol) in anhydrous diethyl ether (10 mL) was added slowly a solution of diphosgene (0.2 mL, 1.8 mmol) in anhydrous diethyl ether cooled to approximately −15° C. The solution was stirred for 1 hour then N,N,N′-trimethyl-1,3-propanediamine (1.3 mL, 8.7 mmol) was added at −15° C. The solution was warmed to room temperature, stirred for 1 hour, and then filtered to remove the ammonium salts and urea. The diethyl ether filtrate was concentrated in vacuo to dryness. The residue was purified by column chromatography (100% ethyl acetate) to afford (6Z,16Z)-12-((Z)-dec-4-enyl)docosa-6,16-dien-11-yl 3-(dimethylamino)propyl(methyl)carbamate 23 as a colorless oil (0.15 g, 23%), 1H NMR (400 MHz, CDCl3) δ 5.41-5.29 (m, 6H), 4.85-4.77 (m, 1H), 3.35-3.21 (m, 2H), 2.93-2.81 (m, 3H), 2.31-2.17 (m, 8H), 2.08-1.92 (m, 12H), 1.75-1.64 (m, 2H), 1.64-1.15 (m, 31H), 0.92-0.85 (m, 9H). Rf 0.45 (10% MeOH—CH2Cl2).

1. temperatureThe solution was warmed to room temperature
2. stirringstirred for 1 hour
3. filtrationfiltered
4. customto remove the ammonium salts and urea
5. concentrationThe diethyl ether filtrate was concentrated in vacuo to dryness
6. customThe residue was purified by column chromatography (100% ethyl acetate)