Dicyclohexylcarbodiimide → 3-O-(4-dimethylaminobutanoyl)-1,2-O-dioleylglycerol

HRID 724768

Reaktionsgleichung

Reaktionsgleichung von HRID 724768
[CH2:1]([O:19][CH2:20][CH:21]([CH2:41][OH:42])[O:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30]/[CH:31]=[CH:32]\[CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH3:40])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8]/[CH:9]=[CH:10]\[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].Cl.[CH3:44][N:45]([CH3:52])[CH2:46][CH2:47][CH2:48][C:49](O)=[O:50].C1(N=C=NC2CCCCC2)CCCCC1>C(Cl)Cl.CN(C)C=O.CN(C)C1C=CN=CC=1>[CH3:44][N:45]([CH3:52])[CH2:46][CH2:47][CH2:48][C:49]([O:42][CH2:41][CH:21]([O:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30]/[CH:31]=[CH:32]\[CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH3:40])[CH2:20][O:19][CH2:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8]/[CH:9]=[CH:10]\[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18])=[O:50]

Komponenten

6

Edukt 3

HCID 10868DicyclohexylcarbodiimideHCID 53803432,3-Bis[(9Z)-9-octadecen-1-yloxy]-1-propanolHCID 126916404-(Dimethylamino)butyric acid hydrochloride

Produkt 1

HCID 867518603-O-(4-dimethylaminobutanoyl)-1,2-O-dioleylglycerolAusbeute 87,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 22350042dichloromethane N,N-dimethylformamideLösungsmittel

Versuchsvorschrift

In 6 ml of methylene chloride-N,N-dimethylformamide (1:2) was dissolved 120 mg (0.20 mmol) of 1,2-O-dioleylglycerol, followed by addition of 168 mg (1 mmol) of 4-dimethylaminobutyric acid hydrochloride. Then, 206 mg (1 mmol) of N,N'-dicyclohexylcarbodiimide (DCC) and 25 mg (0.2 mmol) of 4-dimethylaminopyridine were further added and the reaction was conducted at ambient temperature overnight. The precipitated byproduct urea was filtered off using a glass filter and the filtrate was concentrated to dryness under reduced pressure and treated with methylene chloride-saturated aqueous sodium hydrogen carbonate solution. After phase separation, the methylene chloride layer was dried over sodium sulfate and the solvent was distilled off under reduced pressure. The residue was subjected to column chromatography (silica gel/methylene chloride-methanol) to provide 123 mg (87%) of the title compound.

Aufarbeitung

  1. filtrationThe precipitated byproduct urea was filtered off
  2. filtrationfilter
  3. concentrationthe filtrate was concentrated to dryness under reduced pressure
  4. additiontreated with methylene chloride-saturated aqueous sodium hydrogen carbonate solution
  5. customAfter phase separation
  6. dry with materialthe methylene chloride layer was dried over sodium sulfate
  7. distillationthe solvent was distilled off under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-67c0825cd6a54a299578d974dc75d89a
Quelldatensatz
uspto-grants-1998_01
Patentnummer
US05705188

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