Sodium Carbonate → 8-[3-(1,3-dihydro-3-methyl-2-oxo-2H-benzimidazol-1-yl)propyl]-1-phenyl-1,3,8-triazaspiro[4,5]-decan-4-one

HRID 46875

Reaktionsgleichung

Reaktionsgleichung von HRID 46875
I[CH2:2][CH2:3][CH2:4][N:5]1[C:9]2[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=2[N:7]([CH3:14])[C:6]1=[O:15].[C:16]1([N:22]2[C:26]3([CH2:31][CH2:30][NH:29][CH2:28][CH2:27]3)[C:25](=[O:32])[NH:24][CH2:23]2)[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1.C(=O)([O-])[O-].[Na+].[Na+]>CN(C)C=O>[CH3:14][N:7]1[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[N:5]([CH2:4][CH2:3][CH2:2][N:29]2[CH2:28][CH2:27][C:26]3([N:22]([C:16]4[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=4)[CH2:23][NH:24][C:25]3=[O:32])[CH2:31][CH2:30]2)[C:6]1=[O:15]

Komponenten

5

Edukt 3

HCID 10340Sodium CarbonateHCID 705561-Phenyl-1,3,8-triazaspiro(4.5)decan-4-oneHCID 219899771,3-dihydro-1-(3-iodopropyl)-3-methyl-2H-benzimidazol-2-one

Produkt 1

HCID 203856168-[3-(1,3-dihydro-3-methyl-2-oxo-2H-benzimidazol-1-yl)propyl]-1-phenyl-1,3,8-triazaspiro[4,5]-decan-4-one

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

A mixture of 5 parts of 1,3-dihydro-1-(3-iodopropyl)-3-methyl-2H-benzimidazol-2-one, 3,4 parts of 1-phenyl-1,3,8-triazaspiro[4,5]decan-4-one, 2.65 parts of sodium carbonate and 22.5 parts of N,N-dimethylformamide is stirred and heated for 2 hours at 70° C. The reaction mixture is cooled and poured onto water, whereupon an oily precipitate is formed. The supernatant aqueous phase is decanted and the residual oil is dissolved in trichloromethane. The solution is dried, filtered and evaporated. The residue is purified by column-chromatography over silica gel using a mixture of trichloromethane and 5% of methanol as eluent. The pure fractions are collected and the eluent is evaporated, yielding 1 part of 8-[3-(1,3-dihydro-3-methyl-2-oxo-2H-benzimidazol-1-yl)propyl]-1-phenyl-1,3,8-triazaspiro[4,5]decan-4-one; mp. 164.4° C.

Aufarbeitung

  1. temperatureThe reaction mixture is cooled
  2. additionpoured onto water, whereupon an oily precipitate
  3. customis formed
  4. customThe supernatant aqueous phase is decanted
  5. dissolutionthe residual oil is dissolved in trichloromethane
  6. customThe solution is dried
  7. filtrationfiltered
  8. customevaporated
  9. customThe residue is purified by column-chromatography over silica gel using
  10. additiona mixture of trichloromethane and 5% of methanol as eluent
  11. customThe pure fractions are collected
  12. customthe eluent is evaporated

Quellen und Nachweise

ORD-Eintrag
ord-c010777099d346398c7f5c64b50f7d0d
Quelldatensatz
uspto-grants-1979_11
Patentnummer
US04175129

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