반응식
S(Cl)([Cl:3])=O.[N:5]1[C:9]2[CH:10]=[CH:11][C:12]([C:14]([OH:16])=[O:15])=[CH:13][C:8]=2[NH:7][CH:6]=1.[CH3:17]O>>[ClH:3].[N:5]1[C:9]2[CH:10]=[CH:11][C:12]([C:14]([O:16][CH3:17])=[O:15])=[CH:13][C:8]=2[NH:7][CH:6]=1참가 물질
4
실험 절차
Under ice cooling, thionyl chloride (2.30 ml) was added dropwise to methanol (50 ml). Then, 5-benzimidazolecarboxylic acid (5.00 g) was added, followed by heating under reflux for 5 hours. The reaction mixture was distilled under reduced pressure. The residue was pulverized in diethyl ether, followed by collection through filtration, whereby colorless crystals (6.36 g, 97%) was obtained.
후처리
- temperatureby heating
- temperatureunder reflux for 5 hours
- distillationThe reaction mixture was distilled under reduced pressure
- filtrationfollowed by collection through filtration
출처 및 근거
- ORD 기록
- ord-f89a7e124718480098b5995cbd3b23e9
- 출처 데이터셋
- uspto-grants-2004_06
- 특허 번호
- US06747023B1
연결된 노트
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