Methyl iodide → HCID 178503551, Verbindung

HRID 474747

Reaktionsgleichung

Reaktionsgleichung von HRID 474747
[CH3:1][C:2]1[C:3](=[O:9])[NH:4][C:5](=[S:8])[NH:6][CH:7]=1.[OH-].[K+].[CH3:12]I>C(O)C>[CH3:1][C:2]1[C:3](=[O:9])[N:4]=[C:5]([S:8][CH3:12])[NH:6][CH:7]=1

Komponenten

5

Edukt 3

HCID 6328Methyl iodideHCID 14797Potassium HydroxideHCID 7204712-Thiothymine

Produkt 1

HCID 178503551HCID 178503551, VerbindungAusbeute 71,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

5-methyl-2-thiouracil (2 g, 98%, 13.78 mmol, 1 eq) and KOH, 85%, (1.05 eq, 995 mg) were suspended in 25 ml of absolute ethanol and the mixture was stirred for 1 hour at room temperature. In the suspension was then added MeI (1.05 eq, 905 μl) dropwise and the suspension was heated at 65° C. (temperature on display of heating device) for 2 hours. Solvent was then evaporated. In the rest was added 100 ml of water and using ultrasound was suspended. The obtained precipitate was collected by filtration, it was dried and obtained was 5-methyl-2-methylsulfanyl-1H-pyrimidin-4-one (1.7 g, yield=71.9%, purity=93%) in form of a white powder. MS: [M+H]+=157.08 1H NMR (300 MHz; DMSO-d6) δ/ppm 1.90 (s, 3H), 2.50 (s, 3H), 7.78 (s, 1H)

Aufarbeitung

  1. temperature(temperature on display of heating device) for 2 hours
  2. customSolvent was then evaporated
  3. additionIn the rest was added 100 ml of water
  4. filtrationThe obtained precipitate was collected by filtration, it
  5. customwas dried
  6. customobtained

Quellen und Nachweise

ORD-Eintrag
ord-552263b096a04605a0fd7ee7332b43b7
Quelldatensatz
uspto-grants-2014_01
Patentnummer
US08637536B2

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