Hydrochloric Acid → 6-(5-Trifluoromethyl-3-methyl-benzofuran-2-sulfonyl)-2H-pyridazin-3-one

HRID 22734노트

반응식

HRID 22734 반응식
C[O:2][C:3]1[N:4]=[N:5][C:6]([S:9]([C:12]2[O:13][C:14]3[CH:21]=[CH:20][C:19]([C:22]([F:25])([F:24])[F:23])=[CH:18][C:15]=3[C:16]=2[CH3:17])(=[O:11])=[O:10])=[CH:7][CH:8]=1.Cl>O1CCOCC1>[F:24][C:22]([F:23])([F:25])[C:19]1[CH:20]=[CH:21][C:14]2[O:13][C:12]([S:9]([C:6]3[CH:7]=[CH:8][C:3](=[O:2])[NH:4][N:5]=3)(=[O:10])=[O:11])=[C:16]([CH3:17])[C:15]=2[CH:18]=1

참가 물질

4

반응물 2

HCID 313Hydrochloric AcidHCID 116964083-Methoxy-6-(5-trifluoromethyl-3-methyl-benzofuran-2-sulfonyl)-pyridazine

생성물 1

HCID 101330066-(5-Trifluoromethyl-3-methyl-benzofuran-2-sulfonyl)-2H-pyridazin-3-one

시약·촉매·용매 1

HCID 312751,4-Dioxane용매

반응 조건

온도
100 °C

실험 절차

A mixture of 3-methoxy-6-(5-trifluoromethyl-3-methyl-benzofuran-2-sulfonyl)-pyridazine (1.34 mmol, 500 mg), conc. HCl (2 mL), and dioxane (4 mL) was heated at 100° C. for 2 hours. The reaction mixture was cooled and evaporated to dryness. Water (10 mL) was added to the residue. The resulting white solid was collected and air dried to obtain the desired product: 6-(5-trifluoromethyl-3-methyl-benzofuran-2-sulfonyl)-2H-pyridazin-3-one (56%, 270 mg); mp 244° C.-245° C.

후처리

  1. temperatureThe reaction mixture was cooled
  2. customevaporated to dryness
  3. additionWater (10 mL) was added to the residue
  4. customThe resulting white solid was collected
  5. customair dried

출처 및 근거

ORD 기록
ord-6c704199bcc2406ca1d99caa53667d82
출처 데이터셋
uspto-grants-2005_02
특허 번호
US06849629B2

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