Hydrogen Peroxide → 2-methyl-5-[(5-methyl-1,3,4-thiadiazol-2-yl)disulfanyl]-1,3,4-thiadiazole

HRID 1418254Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1418254
[SH:1][C:2]1[S:3][C:4]([CH3:7])=[N:5][N:6]=1.OO>CO>[CH3:7][C:4]1[S:3][C:2]([S:1][S:1][C:2]2[S:3][C:4]([CH3:7])=[N:5][N:6]=2)=[N:6][N:5]=1

Komponenten

4

Edukt 2

HCID 784Hydrogen PeroxideHCID 178434161HCID 178434161, Verbindung

Produkt 1

HCID 52329992-methyl-5-[(5-methyl-1,3,4-thiadiazol-2-yl)disulfanyl]-1,3,4-thiadiazole

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

Within a flask having a capacity of 1000 ml, 2-mercapto-5-methyl-1,3,4-thiadiazole of 150 mmol is solved in methanol of 450 ml. Into the solution thus prepared, 34.5% hydrogen peroxide of 39 ml is dropped slowly. The solution was stirred for one hour at room temperature. Thereafter, by decompression and heating, precipitate was created. The solution was filtered and washed. By the subsequent drying in a decompressing atmosphere, crude crystal was obtained. By recrystallization using ethanol, 5,5'-dithiobis (5-methyl-1,3,4-thiadiazole) (hereinafter referred to as "active material ε") was obtained.

Aufarbeitung

  1. customWithin a flask having
  2. customInto the solution thus prepared
  3. temperatureThereafter, by decompression and heating
  4. filtrationThe solution was filtered
  5. washwashed
  6. customBy the subsequent drying in a decompressing atmosphere
  7. customcrude crystal was obtained
  8. customBy recrystallization
  9. customwas obtained

Quellen und Nachweise

ORD-Eintrag
ord-3e5bc6f8226f4f029ccccdc1c3ff4b44
Quelldatensatz
uspto-grants-1999_03
Patentnummer
US05882819

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