Hydrogen Bromide → HCID 178419243, Verbindung

HRID 2260727Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2260727
C(OC([N:8]1[C:12]2[CH:13]=[CH:14][C:15]([NH:18][N:19]3[CH2:23][CH2:22][N:21]=[CH:20]3)=[C:16]([CH3:17])[C:11]=2[N:10]=[CH:9]1)=O)(C)(C)C.[BrH:24]>C(O)(=O)C>[BrH:24].[BrH:24].[CH3:17][C:16]1[C:11]2[NH:10][CH:9]=[N:8][C:12]=2[CH:13]=[CH:14][C:15]=1[NH:18][N:19]1[CH2:23][CH2:22][N:21]=[CH:20]1

Komponenten

4

Edukt 2

HCID 260Hydrogen BromideHCID 677273531-Tert-butoxycarbonyl-4-methyl-5-(2-imidazolinylamino)benzimidazole

Produkt 1

HCID 178419243HCID 178419243, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 176Acetic AcidLösungsmittel2×

Versuchsvorschrift

To a solution of 1 -tert-butoxycarbonyl-4-methyl-5-(2-imidazolinylamino)benzimidazole (2.40 g) in glacial acetic acid (50 mL) is added a solution of hydrobromic acid in glacial acetic acid (30%, 6 mL). The mixture is stirred at room temperature and gas evolution is monitored. After the gas evolution has stopped (about 1 hour), the precipitate is filtered and washed with ether. The solid is recrystallized from methanol/ether and dried in vacuo to afford 4-methyl-5-(2-imidazolinylamino)benzimidazole dihydrobromide as a pale rose solid.

Aufarbeitung

  1. custom(about 1 hour)
  2. filtrationthe precipitate is filtered
  3. washwashed with ether
  4. customThe solid is recrystallized from methanol/ether
  5. customdried in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-f8a80efa943c481ba5f4b285dd7e22fe
Quelldatensatz
uspto-grants-1995_12
Patentnummer
US05478858

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