2-Methyl-2-thiopseudourea → Benzyl [amino(methylsulfanyl)methylene]carbamate

HRID 67706

Reaktionsgleichung

Reaktionsgleichung von HRID 67706
[CH3:1][S:2][C:3](=[NH:5])[NH2:4].[CH2:6]([O:13][C:14](Cl)=[O:15])[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.[OH-].[Na+]>O>[CH2:6]([O:13][C:14]([NH:5][C:3](=[NH:4])[S:2][CH3:1])=[O:15])[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1

Komponenten

5

Edukt 3

HCID 51422-Methyl-2-thiopseudoureaHCID 10387Benzyl chloroformateHCID 14798Sodium Hydroxide

Produkt 1

HCID 140362141Benzyl [amino(methylsulfanyl)methylene]carbamate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

13.9 g (0.1 mole) of S-methyl-isothiourea are dissolved in 50 ml of water, cooled to a temperature of 0° to 5° C., and at this temperature and with constant stirring 15 ml (0.1 mole) of chloroformic acid benzyl ester and 50 ml of 4 N sodium hydroxide are added in about 20 minutes. The precipitate formed is filtered, washed three times with 50 ml of cold water, then three times with 50 ml of n-hexane, and finally dried over phosphorpentoxide in vacuo. Yield 15.7 g (70 percent) of the named compound. M.p.: 74° to 75° C.; RF1 0.70 to 0.75.

Aufarbeitung

  1. temperaturecooled to a temperature of 0° to 5° C.
  2. additionare added in about 20 minutes
  3. customThe precipitate formed
  4. filtrationis filtered
  5. washwashed three times with 50 ml of cold water
  6. dry with materialthree times with 50 ml of n-hexane, and finally dried over phosphorpentoxide in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-a20db19e16264b86af370111a4c273e0
Quelldatensatz
uspto-grants-1982_08
Patentnummer
US04346078

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