Hydrogen Bromide → HCID 20300309, Verbindung

HRID 1733118Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1733118
C(N(CC)CC)C.[CH3:8][N:9]1[C:13](=[O:14])[C:12](=[O:15])[NH:11][C:10]1=[S:16].Br[CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][Br:23].Br>CS(C)=O.CCCCCC>[Br:23][CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][N:11]1[C:12](=[O:15])[C:13](=[O:14])[N:9]([CH3:8])[C:10]1=[S:16]

Komponenten

7

Edukt 4

HCID 260Hydrogen BromideHCID 81001,5-DibromopentaneHCID 8471TriethylamineHCID 203003261-Methyl-2-sulfanylideneimidazolidine-4,5-dione

Produkt 1

HCID 20300309HCID 20300309, VerbindungAusbeute 46 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 679Dimethyl SulfoxideLösungsmittelHCID 8058HexaneLösungsmittel

Versuchsvorschrift

Triethylamine (84 ml, 0.60 mole) was added dropwise over a period of 6 hours to a stirred solution of 1-methyl-2-thioxo-4,5-imidazolidinedione (88 g, 0.61 mole) and 1,5-dibromopentane (264 g, 1.20 mole) in dimethylsulphoxide (650 ml) at room temperature. The mixture was allowed to stand overnight and then poured into ice water (3 liters) containing concentrated hydrobromic acid (1 ml). The mixture was extracted with chloroform and the extracts were washed with water, dried over magnesium sulphate and evaporated to give an oil which was treated with hexane to give yellow crystals of 1-(5-bromopentyl)-3-methyl-2-thioxo-4,5-imidazolidinedione (82.3 g), m.p. 48°-50°.

Aufarbeitung

  1. extractionThe mixture was extracted with chloroform
  2. washthe extracts were washed with water
  3. dry with materialdried over magnesium sulphate
  4. customevaporated
  5. customto give an oil which

Quellen und Nachweise

ORD-Eintrag
ord-2bf610db2b0442259bfac1a2bcc8e2fb
Quelldatensatz
uspto-grants-1980_12
Patentnummer
USRE030457

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