1-Hydroxybenzotriazole → 5-amino-2,4-difluoro-N-methylbenzamide

HRID 81459

反応式

HRID 81459 の反応式
[NH2:1][C:2]1[C:3]([F:12])=[CH:4][C:5]([F:11])=[C:6]([CH:10]=1)[C:7](O)=[O:8].Cl.[CH3:14][N:15](C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C.Cl.CNO>C1COCC1>[NH2:1][C:2]1[C:3]([F:12])=[CH:4][C:5]([F:11])=[C:6]([CH:10]=1)[C:7]([NH:15][CH3:14])=[O:8]

参加物

7

実験手順

5-amino-2,4-difluoro-benzoic acid (6 g, 34.6 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (13.3 g, 69.3 mmol) and 1-hydroxybenzotriazole (9.3 g, 69.3 mmol) was stirred in THF (100 ml). Diisopropylethylamine (7.2 ml, 41.5 mmol) and methylhydroxyamine hydrochloride (4.3 g, 51.9 mmol) were added thereto, and the solution was stirred for 5 hours. The resulting solution was extracted with ethylacetate and washed with salt solution. The resulting residue was recrystallized with diethylether to obtain the title compound 5 g (yield: 71%).

後処理

  1. extractionThe resulting solution was extracted with ethylacetate
  2. washwashed with salt solution
  3. customThe resulting residue was recrystallized with diethylether

出典と根拠

ORDレコード
ord-521e82beb46b4d0d8f1480c4ab46e1cd
出典データセット
uspto-grants-2014_09
特許番号
US08846699B2

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