Triethylamine → HCID 21249956, Verbindung

HRID 1531658Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1531658
[Br:1][C:2]1[C:3]([O:23][CH3:24])=[CH:4][C:5]2[C:11]([C:12]3[CH:17]=[CH:16][C:15]([N+:18]([O-:20])=[O:19])=[CH:14][CH:13]=3)=[N:10][NH:9][CH:8]([CH3:21])[CH2:7][C:6]=2[CH:22]=1.C(N(CC)CC)C.[CH:32]1([C:35](Cl)=[O:36])[CH2:34][CH2:33]1>C(Cl)Cl>[Br:1][C:2]1[C:3]([O:23][CH3:24])=[CH:4][C:5]2[C:11]([C:12]3[CH:17]=[CH:16][C:15]([N+:18]([O-:20])=[O:19])=[CH:14][CH:13]=3)=[N:10][N:9]([C:35]([CH:32]3[CH2:34][CH2:33]3)=[O:36])[CH:8]([CH3:21])[CH2:7][C:6]=2[CH:22]=1

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 77637Cyclopropanecarbonyl chlorideHCID 21249960HCID 21249960, Verbindung

Produkt 1

HCID 21249956HCID 21249956, VerbindungAusbeute 93 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

0.69 g (1.77 mmol) of 7-bromo-8-methoxy-4-methyl-1-(4-nitrophenyl)-4,5-dihydro-3H-2,3-benzodiazepine (Example 4, Step A) is acylated in methylene chloride (15 ml) in the presence of 0.29 ml (2.1 mmol) of triethylamine with 0.19 ml (2.1 mmol) of cyclopropanoic acid chloride at room temperature for 1.5 hours. After concentration by evaporation and suspension with water, 0.78 g of a crude product, which is purified by suspension in hot ethanol, is obtained. 0.75 g (93%) of 7-bromo-3-cyclopropylcarbonyl-8-methoxy-4-methyl-1-(4-nitrophenyl)-4,5-dihydro-3H-2,3-benzodiazepine with a melting point of 194-196° C. is obtained.

Aufarbeitung

  1. concentrationAfter concentration
  2. customby evaporation and suspension with water, 0.78 g of a crude product, which
  3. customis purified by suspension in hot ethanol
  4. customis obtained

Quellen und Nachweise

ORD-Eintrag
ord-7c60cf63ded243b0bfd61274c4f0a350
Quelldatensatz
uspto-grants-2001_03
Patentnummer
US06200970B1

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