Benzyl Alcohol → 1-(3-(Benzyloxy)-2-fluoro-6-nitrophenyl)propan-2-one

HRID 916374노트

반응식

HRID 916374 반응식
[CH2:1]([OH:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].F[C:12]1[CH:17]=[CH:16][C:15]([N+:18]([O-:20])=[O:19])=[C:14]([CH2:21][C:22](OC)([O:24]C)[CH3:23])[C:13]=1[F:28]>CC(N(C)C)=O.Cl>[C:22]([CH2:21][C:14]1[C:13]([F:28])=[C:12]([O:8][CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[CH:17]=[CH:16][C:15]=1[N+:18]([O-:20])=[O:19])(=[O:24])[CH3:23]

참가 물질

6

반응물 3

HCID 244Benzyl AlcoholHCID 24758Sodium hydrideHCID 22030751HCID 22030751, 화합물

생성물 1

HCID 112896631-(3-(Benzyloxy)-2-fluoro-6-nitrophenyl)propan-2-one수율 56.3%

시약·촉매·용매 2

HCID 313Hydrochloric Acid용매HCID 31374Dimethylacetamide용매2회

실험 절차

To a solution of benzyl alcohol (221 mg, 2.05 mmol) in DMA (1.5 ml) was added 60% sodium hydride (82 mg, 2.05 mmol). The mixture was stirred for 1 hour at ambient temperature. A solution of 1,2-difluoro-3-(2,2-dimethoxypropyl)-4-nitrobenzene (534 mg, 2.05 mmol) in DMA (1.5 ml) was added and the mixture was stirred for 3 hours at ambient temperature. The mixture was diluted with 1N hydrochloric acid (10 ml) and extracted with ethyl acetate. The organic layer was evaporated and the residue was dissolved in THF (2 ml) and 6N hydrochloric acid (0.3 ml) was added. The mixture was stirred for 1 hour at ambient temperature and the solvents were removed under vacuum. The residue was partitioned between ethyl acetate and water. The organic layer was separated, washed with brine, dried (MgSO4) and evaporated. The solid was triturated with ether, filtered, washed with ether and dried under vacuum to give 3-acetylmethyl-1-benzyloxy-2-fluoro-4-nitrobenzene (350 mg, 56%).

후처리

  1. stirringthe mixture was stirred for 3 hours at ambient temperature
  2. extractionextracted with ethyl acetate
  3. customThe organic layer was evaporated
  4. dissolutionthe residue was dissolved in THF (2 ml)
  5. addition6N hydrochloric acid (0.3 ml) was added
  6. stirringThe mixture was stirred for 1 hour at ambient temperature
  7. customthe solvents were removed under vacuum
  8. customThe residue was partitioned between ethyl acetate and water
  9. customThe organic layer was separated
  10. washwashed with brine
  11. dry with materialdried (MgSO4)
  12. customevaporated
  13. customThe solid was triturated with ether
  14. filtrationfiltered
  15. washwashed with ether
  16. customdried under vacuum

출처 및 근거

ORD 기록
ord-a5e8623f16404d1282a025e51075ded5
출처 데이터셋
uspto-grants-2007_09
특허 번호
US07268230B2

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