Dimethylamine → HCID 20508546, Verbindung

HRID 1758785Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1758785
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:14]2[CH:15]=[C:16]([N:19]=[C:20]=[O:21])[CH:17]=[CH:18][C:13]=2[N:12]2[C:22]([CH3:25])=[N:23][N:24]=[C:11]2[CH2:10][N:9]=1.FC1C=CC=CC=1[C:33]1C2C=C(NC(NCCO)=O)C=CC=2N2C=NN=C2[CH2:35][N:34]=1.NC1C=CC2N3C(C)=NN=C3CN=C(C3C=CC=CC=3Cl)C=2C=1.C(=O)([O-])[O-].[Na+].[Na+].CNC>C(#N)C.C(Cl)Cl>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:14]2[CH:15]=[C:16]([NH:19][C:20](=[O:21])[N:34]([CH3:35])[CH3:33])[CH:17]=[CH:18][C:13]=2[N:12]2[C:22]([CH3:25])=[N:23][N:24]=[C:11]2[CH2:10][N:9]=1

Komponenten

8

Edukt 5

HCID 674DimethylamineHCID 10340Sodium CarbonateHCID 125625156-(2-Chlorophenyl)-1-methyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepin-8-amineHCID 20508545HCID 20508545, VerbindungHCID 20508562HCID 20508562, Verbindung

Produkt 1

HCID 20508546HCID 20508546, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6342AcetonitrileLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A solution of [6-(o-chlorophenyl)-1-methyl-4H-s-triazolo[4,3-a][1,4]benzodiazepin-8-yl]isocyanate, prepared as described in paragraph (a) of Example 1 from 7.0 g (21.6 mmol) of 8-amino-6-(2-chlorophenyl)-1-methyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine, but using methylene chloride in place of 1,2-dichloroethane, is treated while stirring and cooling with ice with a suspension of 8.7 g (81.9 mmol) of sodium carbonate in 50 ml of ice-cold methylene chloride and 5 g (111.1 mmol) of dimethylamine, the suspension being added in one portion. After the addition of 60 ml of dry acetonitrile, the mixture is stirred at room temperature for 20 hours and concentrated at 50° C. in vacuo. The residue is suspended in 100 ml of methylene chloride and 100 ml of water and filtered off. The material remaining is dissolved in 80 ml of hot ethanol and left to stand at -10° C. overnight. After filtering off the resulting crystals, there is obtained 3-[6-(o-chlorophenyl)-1-methyl-4H-s-triazolo[4,3-a][1,4]-benzodiazepin-8-yl]-1,1-dimethylurea of melting point 186° C. (decomposition).

Aufarbeitung

  1. additionis treated
  2. additionthe suspension being added in one portion
  3. stirringthe mixture is stirred at room temperature for 20 hours
  4. concentrationconcentrated at 50° C. in vacuo
  5. filtration100 ml of water and filtered off
  6. dissolutionThe material remaining is dissolved in 80 ml of hot ethanol
  7. waitleft
  8. filtrationAfter filtering off the resulting crystals

Quellen und Nachweise

ORD-Eintrag
ord-aa114f090e7a4fc68f6a5cb7f31021ce
Quelldatensatz
uspto-grants-1983_02
Patentnummer
US04374773

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