2-(4-Tert-butyl-benzoylamino)-4-nitro-benzoic acid methyl ester → 4-Amino-2-(4-tert-butyl-benzoylamino)-benzoic acid methyl ester

HRID 29661

반응식

HRID 29661 반응식
[CH3:1][O:2][C:3](=[O:26])[C:4]1[CH:9]=[CH:8][C:7]([N+:10]([O-])=O)=[CH:6][C:5]=1[NH:13][C:14](=[O:25])[C:15]1[CH:20]=[CH:19][C:18]([C:21]([CH3:24])([CH3:23])[CH3:22])=[CH:17][CH:16]=1>C(OCC)(=O)C.[Pd]>[CH3:1][O:2][C:3](=[O:26])[C:4]1[CH:9]=[CH:8][C:7]([NH2:10])=[CH:6][C:5]=1[NH:13][C:14](=[O:25])[C:15]1[CH:16]=[CH:17][C:18]([C:21]([CH3:22])([CH3:23])[CH3:24])=[CH:19][CH:20]=1

참가 물질

4

반응물 1

HCID 691945292-(4-Tert-butyl-benzoylamino)-4-nitro-benzoic acid methyl ester

생성물 1

HCID 691966714-Amino-2-(4-tert-butyl-benzoylamino)-benzoic acid methyl ester수율 76.2%

시약·촉매·용매 2

HCID 23938Palladium촉매HCID 8857Ethyl Acetate용매2회

실험 절차

To a Parr shaker bottle was added 10% Pd/C (0.346 g) then ethyl acetate (50 mL) followed by 2-(4-tert-butyl-benzoylamino)-4-nitro-benzoic acid methyl ester (3.041 g, 8.53 mmol) as a solution in ethyl acetate (200 mL). The reaction was hydrogenated overnight, filtered through celite and silica washing with ethyl acetate and concentrated in vacuo. The residue was purified by flash chromatography using ethyl acetate/hexanes (20/80) to afford 4-amino-2-(4-tert-butyl-benzoylamino)-benzoic acid methyl ester (2.122 g, 76%) as a yellow solid.

후처리

  1. filtrationfiltered through celite and silica washing with ethyl acetate
  2. concentrationconcentrated in vacuo
  3. customThe residue was purified by flash chromatography

출처 및 근거

ORD 기록
ord-56588c6a396e49eca033e96f266f80bb
출처 데이터셋
uspto-grants-2008_09
특허 번호
US07420083B2

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