반응 #520156

반응 방정식

1-hydroxy-3-(z-15-tetracosenoyloxy)propane

z,z,z-6,9,12-octadecatrienoic acid

hypophosphorous acid

→

1-(z,z,z-6,9,12-octadecatrienoyloxy)-3-(z-15-tetracosenoyloxy)propane

용매

반응 조건

후처리

1. 1
   기타prepared
2. 2
   온도was heated
3. 3
   기타had reacted (Rf: 0.60)
4. 4
   온도The mixture was cooled down to room temperature
5. 5
   세척The resulting solution was washed with saturated sodium bicarbonate (3×80 mL) and saturated sodium chloride (3×80 mL)
6. 6
   건조It was then dried over anhydrous sodium sulphate
7. 7
   농축concentrated
8. 8
   기타purified by flash chromatography on silica gel (19:1 petroleum ether-ethyl ether)

실험 절차

A mixture of 1-hydroxy-3-(z-15-tetracosenoyloxy)propane, prepared according to Description 3, (0.045 mol, 19.0 g), z,z,z-6,9,12-octadecatrienoic acid (0.054 mol, 15.0 g) and hypophosphorous acid (0.4 g) was heated with stirring to 160° C. under nitrogen. After 5 h, TLC (80:18:2 petroleum ether-ethyl ether-acetic acid) indicated that most of the mono-ester had reacted (Rf: 0.60). The mixture was cooled down to room temperature and petroleum ether (800 mL) was added. The resulting solution was washed with saturated sodium bicarbonate (3×80 mL) and saturated sodium chloride (3×80 mL). It was then dried over anhydrous sodium sulphate, concentrated and purified by flash chromatography on silica gel (19:1 petroleum ether-ethyl ether) to yield 1-(z,z,z-6,9,12-octadecatrienoyloxy)-3-(z-15-tetracosenoyloxy)propane as a pale yellow oil.

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