Ammonia → 2,6-Dimethyl-5-nitroquinoline

HRID 2182732

반응식

HRID 2182732 반응식
[CH3:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([CH3:12])[CH:8]=2)[N:3]=1.S(=O)(=O)(O)O.[N+:18]([O-])([O-:20])=[O:19].[K+].N>>[CH3:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([CH3:12])[C:8]=2[N+:18]([O-:20])=[O:19])[N:3]=1

참가 물질

5

반응물 4

HCID 222AmmoniaHCID 1118Sulfuric Acid2회HCID 134142,6-DimethylquinolineHCID 24434Potassium Nitrate

생성물 1

HCID 7665652,6-Dimethyl-5-nitroquinoline

실험 절차

3 g (19.08 mmol) of 2,6-dimethylquinoline is introduced into 15 ml of concentrated sulfuric acid at 10° C. After one-half hour, a solution of 2.03 g of potassium nitrate in 11.4 concentrated sulfuric acid is added in drops, specifically so that the temperature remains between 5° and 15° C. The batch is stirred for one more hour and then poured onto ice water. It is made ammonia-alkaline, and the deposited precipitate is suctioned off. After washing with water, the crude product is dissolved in ethyl acetate and shaken from water. The organic phase is treated as usual. After the solvent is spun off, 3.69 g (95.6%) of the desired compound remains, which is used in the reduction without further purification.

후처리

  1. waitAfter one-half hour
  2. customremains between 5° and 15° C
  3. additionpoured onto ice water
  4. washAfter washing with water
  5. dissolutionthe crude product is dissolved in ethyl acetate
  6. stirringshaken from water
  7. additionThe organic phase is treated as usual
  8. customwhich is used in the reduction without further purification

출처 및 근거

ORD 기록
ord-9e4abae26cfc4d9e8ae9699579c31889
출처 데이터셋
uspto-grants-2005_05
특허 번호
US06897224B2

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