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Methanol → HCID 178441400, Verbindung

HRID 1493668
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1493668
[C:1](=O)([O-:3])[O-:2].[Ba+2].[CH3:6][CH2:7][CH2:8][CH2:9][CH:10]1[C:45](=[O:46])[O:44][CH:43]([CH:47]([CH:49]([OH:57])[CH2:50][CH2:51][CH2:52][NH:53][C:54]([NH2:56])=[NH:55])[CH3:48])[CH:42]([CH3:58])[CH:41]=[C:40]([CH3:59])[CH2:39][CH2:38][CH2:37][CH2:36][CH:35]([OH:60])[CH2:34][CH:33]([OH:61])[CH2:32][CH:31]([OH:62])[CH2:30][CH:29]([OH:63])[CH2:28][CH:27]([OH:64])[CH:26]([O:65][C@H:66]2[O:70][C@H:69]([CH2:71][OH:72])[C@@H:68]([OH:73])[C@@H:67]2[OH:74])[CH:25]=[C:24]([CH3:75])[CH:23]([OH:76])[CH2:22][CH2:21][CH2:20][CH:19]([OH:77])[CH2:18][CH2:17][CH2:16][CH:15]([OH:78])[CH2:14][CH2:13][CH:12]([CH3:79])[CH:11]1[OH:80].S([O-])([O-])(=O)=O.CO>C(O)=O>[CH3:6][CH2:7][CH2:8][CH2:9][CH:10]1[C:45](=[O:46])[O:44][CH:43]([CH:47]([CH:49]([OH:57])[CH2:50][CH2:51][CH2:52][NH:53][C:54]([NH2:56])=[NH:55])[CH3:48])[CH:42]([CH3:58])[CH:41]=[C:40]([CH3:59])[CH2:39][CH2:38][CH2:37][CH2:36][CH:35]([OH:60])[CH2:34][CH:33]([OH:61])[CH2:32][CH:31]([OH:62])[CH2:30][CH:29]([OH:63])[CH2:28][CH:27]([OH:64])[CH:26]([O:65][C@H:66]2[O:70][C@H:69]([CH2:71][OH:72])[C@@H:68]([OH:73])[C@@H:67]2[OH:74])[CH:25]=[C:24]([CH3:75])[CH:23]([OH:76])[CH2:22][CH2:21][CH2:20][CH:19]([OH:77])[CH2:18][CH2:17][CH2:16][CH:15]([OH:78])[CH2:14][CH2:13][CH:12]([CH3:79])[CH:11]1[OH:80].[CH:1]([O-:3])=[O:2]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 887MethanolHCID 10563Barium CarbonateHCID 178441404HCID 178441404, Verbindung

Produkt 1

HCID 178441400HCID 178441400, VerbindungAusbeute 191,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 284Formic AcidLösungsmittel

Versuchsvorschrift

0.088 g (0.446 millimole) of barium carbonate are heated to boiling in 5 ml of formic acid until a clear solution is obtained. The colorless solution is evaporated to dryness in vacuo. The residue is dissolved in 10 ml of methanol and the solution thus obtained is added to a suspension of 1.0 g (0.887 millimole) of primycin sulfate and 70 ml of methanol. The reaction mixture is heated to boiling for 10 minutes under constant stirring. The precipitated barium sulfate is filtered hot through a Celite filtration auxiliary agent. The filtrate is evaporated in vacuo and the solid residue is treated with ether. The white powdery product is washed with 20 ml of a 2:1 mixture of acetone and water and thereafter with anhydrous ether. Thus 0.96 g of primycin formate is obtained, yield 94.8%. Mp.: 162°-164° C., /α/D25 =+31.9°. (in a 2:2:1 mixture of n-butanol, ethanol and water, c=0.1%)

Aufarbeitung

  1. customis obtained
  2. customThe colorless solution is evaporated to dryness in vacuo
  3. dissolutionThe residue is dissolved in 10 ml of methanol
  4. customthe solution thus obtained
  5. temperatureThe reaction mixture is heated
  6. filtrationThe precipitated barium sulfate is filtered hot through a Celite filtration auxiliary agent
  7. customThe filtrate is evaporated in vacuo
  8. additionthe solid residue is treated with ether
  9. washThe white powdery product is washed with 20 ml of a 2:1 mixture of acetone and water

Quellen und Nachweise

ORD-Eintrag
ord-6e0326e9bace466d943079d6311033f3
Quelldatensatz
uspto-grants-1991_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05023242

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