Sodium Thiosulfate → 9-Chloro-1-(2,4-dichlorophenyl)-6-[(ethylsulfonyl)methyl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole

HRID 1628971Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1628971
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH2:23]SCC)=[CH:4][CH:3]=1.Cl[C:28]1C=CC=C(C(OO)=O)[CH:29]=1.[S:38]([O-:42])([O-])(=[O:40])=S.[Na+].[Na+]>C(#N)C>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH2:23][S:38]([CH2:28][CH3:29])(=[O:42])=[O:40])=[CH:4][CH:3]=1

Komponenten

5

Edukt 3

HCID 24477Sodium ThiosulfateHCID 70297m-Chloroperbenzoic acidHCID 577863759-Chloro-1-(2,4-dichlorophenyl)-6-[(ethylsulfanyl)methyl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole

Produkt 1

HCID 577859309-Chloro-1-(2,4-dichlorophenyl)-6-[(ethylsulfonyl)methyl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazoleAusbeute 82 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a solution of 9-Chloro-1-(2,4-dichlorophenyl)-6-[(ethylsulfanyl)methyl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole (216 mg, 0.506 mmol) in acetonitrile (10 mL) was added 3-chloroperbenzoic acid (70%, 0.274 g, 1.11 mmol) at 0° C. The mixture was stirred at 0° C. for 1 hr. Aqueous sodium thiosulfate was added to the reaction mixture at 0° C. and the mixture was stirred at room temperature. The mixture was extracted with ethyl acetate. The organic layer was washed with aqueous sodium hydrogen carbonate and brine. The organic layer was concentrated in vacuo and the precipitated solid was collected by filtration. The solid was washed with water, 2-propanol and diisopropyl ether to give the title compound (190 mg, 0.414 mmol, 82%) as a colorless solid.

Aufarbeitung

  1. stirringthe mixture was stirred at room temperature
  2. extractionThe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with aqueous sodium hydrogen carbonate and brine
  4. concentrationThe organic layer was concentrated in vacuo
  5. filtrationthe precipitated solid was collected by filtration
  6. washThe solid was washed with water, 2-propanol and diisopropyl ether

Quellen und Nachweise

ORD-Eintrag
ord-b851294259ee488282630e2162dfc22c
Quelldatensatz
uspto-grants-2014_07
Patentnummer
US08785460B2

Notizen zur Reaktion

Wird geladen…