Methanol → 4-Chloro-2-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl-phenylamine

HRID 2238314

반응식

HRID 2238314 반응식
[NH:1]([C:3]1[N:8]=[CH:7][CH:6]=[CH:5][N:4]=1)[NH2:2].[N+:9]([C:12]1[CH:19]=[CH:18][C:17]([Cl:20])=[CH:16][C:13]=1[CH:14]=O)([O-])=O.CO.C(O)(=O)C.C(O)(=O)C.IC1C=CC=CC=1>[NH4+].[Cl-].CCO.[Fe]>[Cl:20][C:17]1[CH:18]=[CH:19][C:12]([NH2:9])=[C:13]([C:14]2[N:4]3[CH:5]=[CH:6][CH:7]=[N:8][C:3]3=[N:1][N:2]=2)[CH:16]=1

참가 물질

8

반응물 4

HCID 887MethanolHCID 811235-Chloro-2-nitrobenzaldehydeHCID 3465582-HydrazinylpyrimidineHCID 12217721Iodo benzene diacetate

생성물 1

HCID 436286444-Chloro-2-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl-phenylamine

시약·촉매·용매 3

HCID 23925Iron촉매HCID 702Ethanol용매HCID 25517Ammonium Chloride용매

반응 조건

온도
60 °C

실험 절차

A 5 mL scintillation vial was charged with 2-hydrazinopyrimidine (61 mg, 0.55 mmol), 2-nitro-5-chlorobenzaldehyde (112 mg, 0.06 mmol) and MeOH (500 μL) and heated to 60° C. for 30 minutes. The MeOH was then removed in vacuo and the resultant solid was washed with Et2O. The crude solid (30 mg) was then suspended in CH2Cl2 (1 mL) and iodobenzene diacetate (39 mg, 0.12 mmol) was added. The reaction was stirred at room temperature for 30 minutes after which the solvent was removed in vacuo. The resultant residue was then dissolved in a 10% solution of saturated NH4Cl(aq) in EtOH and iron (19 mg, 0.33 mmol) was then added and the reaction was stirred at 80° C. for 4 h. The solvent was then removed in vacuo and the product was purified by silica gel chromatography to afford 4-chloro-2-[1,2,4]triazolo[4,3-a]pyrimidin-3-yl-phenylamine as a light yellow oil.

후처리

  1. customThe MeOH was then removed in vacuo
  2. washthe resultant solid was washed with Et2O
  3. customwas removed in vacuo
  4. additionwas then added
  5. stirringthe reaction was stirred at 80° C. for 4 h
  6. customThe solvent was then removed in vacuo
  7. customthe product was purified by silica gel chromatography

출처 및 근거

ORD 기록
ord-f29e76e1952b4394943992fe5108c5a9
출처 데이터셋
uspto-grants-2010_05
특허 번호
US07718683B2

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