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Chloroacetic Acid → 2-(chloromethyl)-4-methoxy-1H-benzo[d]imidazole

HRID 7089
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HRID 7089 반응식
[NH2:1][C:2]1[C:7]([O:8][CH3:9])=[CH:6][CH:5]=[CH:4][C:3]=1[N+:10]([O-])=O.[Cl:13][CH2:14][C:15](O)=O.Cl>CO.[Pd]>[Cl:13][CH2:14][C:15]1[NH:10][C:3]2[CH:4]=[CH:5][CH:6]=[C:7]([O:8][CH3:9])[C:2]=2[N:1]=1
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참가 물질

6

반응물 3

HCID 300Chloroacetic AcidHCID 313Hydrochloric AcidHCID 854916-Nitro-o-anisidine2회

생성물 1

HCID 220187532-(chloromethyl)-4-methoxy-1H-benzo[d]imidazole수율 86.6%

시약·촉매·용매 2

HCID 23938Palladium촉매HCID 887Methanol용매

실험 절차

A solution of 2-amino-3-methoxy-1-nitrobenzene (0.860 g, 5.11 mmol) in MeOH (50 mL) was hydrogenated (1 atm) over palladium, 10 wt. % on activated carbon (0.163 g). The resultant crude 3-methoxy-1,2-phenylenediamine was reacted with chloroacetic acid (0.953 g, 10.08 mmol) in refluxing 4 N HCl (10 mL) overnight. After aqueous workup, 0.87 g of 2-chloromethyl-4-methoxy-1H-benzimidazole was isolated as a red-brown solid, which was used without further purification.

출처 및 근거

ORD 기록
ord-24bc86431bd542409b1544b66fd7149e
출처 데이터셋
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07084155B2

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