Phenyl chloroformate → 4-methoxy-2-oxo-2,3-dihydrobenzimidazole-1-carboxylic Acid Phenyl Ester

HRID 651382Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 651382
[CH3:1][O:2][C:3]1[C:11]2[NH:10][C:9](=[O:12])[NH:8][C:7]=2[CH:6]=[CH:5][CH:4]=1.[C:13]1([O:19][C:20](Cl)=[O:21])[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1>N1C=CC=CC=1>[C:13]1([O:19][C:20]([N:8]2[C:7]3[CH:6]=[CH:5][CH:4]=[C:3]([O:2][CH3:1])[C:11]=3[NH:10][C:9]2=[O:12])=[O:21])[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1

Komponenten

4

Edukt 2

HCID 15891Phenyl chloroformateHCID 129266284-methoxy-1H-benzo[d]imidazol-2(3H)-one

Produkt 1

HCID 701266724-methoxy-2-oxo-2,3-dihydrobenzimidazole-1-carboxylic Acid Phenyl Ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1049PyridineLösungsmittel

Versuchsvorschrift

To a solution of 4-methoxy-2-oxo-2,3-dihydrobenzimidazole (24 g; 0.146 mol) in pyridine (200 ml), phenylchloroformate (18.4 ml; 0.146 mol) was added dropwise. The reaction mixture was refluxed for 14 hours then was poured into ice-water. The precipitated solid was collected and dried to give the title compound. 30 g; m.p. 204-205° C.

Aufarbeitung

  1. temperatureThe reaction mixture was refluxed for 14 hours
  2. customThe precipitated solid was collected
  3. customdried

Quellen und Nachweise

ORD-Eintrag
ord-f2ca2589acc941b49c79a3176a633e7e
Quelldatensatz
uspto-grants-2001_08
Patentnummer
US06281218B1

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