Lithium hydroxide, monohydrate → HCID 14748625, 화합물

HRID 1089164노트

반응식

HRID 1089164 반응식
[Cl:1][C:2]1[C:10]2[O:9][CH:8]([C:11]([O:13]CC)=[O:12])[O:7][C:6]=2[CH:5]=[C:4]([C:16]([C:18]2[N:22]([C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][N:24]=3)[N:21]=[CH:20][CH:19]=2)=[O:17])[C:3]=1[Cl:29].O.[OH-].[Li+]>O1CCCC1.O>[Cl:1][C:2]1[C:10]2[O:9][CH:8]([C:11]([OH:13])=[O:12])[O:7][C:6]=2[CH:5]=[C:4]([C:16]([C:18]2[N:22]([C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][N:24]=3)[N:21]=[CH:20][CH:19]=2)=[O:17])[C:3]=1[Cl:29]

참가 물질

5

반응물 2

HCID 168937Lithium hydroxide, monohydrateHCID 14748612HCID 14748612, 화합물

생성물 1

HCID 14748625HCID 14748625, 화합물수율 96.2%

시약·촉매·용매 2

HCID 962Water용매HCID 8028Tetrahydrofuran용매

실험 절차

1.5 g of ethyl 4,5-dichloro-6-(1-(2-pyridyl)-5-pyrazolylcarbonyl)-1,3-benzodioxole-2-carboxy l ate are dissolved in a mixture of 18 ml of tetrahydrofuran and 2 ml of water. 177 mg of lithium hydroxide monohydrate are added to the solution and the mixture is stirred at room temperature for one hour. The reaction mixture is concentrated under reduced pressure to remove tetrahydrofuran. Water and 1N hydrochloric acid are added to the residue, and the mixture is extracted with ethyl acetate. The extract is washed with water, dried and evaporated under reduced pressure to remove solvent. The residue is recrystallized from ethyl acetate-n-hexane to give 1.35 g of 4,5-dichloro-6-(1-(2-pyridyl)-5-pyrazolylcarbonyl)-1,3-benzodioxol e-2-carboxylic acid. Yield: 96%

후처리

  1. concentrationThe reaction mixture is concentrated under reduced pressure
  2. customto remove tetrahydrofuran
  3. additionWater and 1N hydrochloric acid are added to the residue
  4. extractionthe mixture is extracted with ethyl acetate
  5. washThe extract is washed with water
  6. customdried
  7. customevaporated under reduced pressure
  8. customto remove solvent
  9. customThe residue is recrystallized from ethyl acetate-n-hexane

출처 및 근거

ORD 기록
ord-7923e63589e34ba4a55637776f4df678
출처 데이터셋
uspto-grants-1990_10
특허 번호
US04965282

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