4-(2,5-Difiuorobenzyl)pyridine → 4-[(2,5-Difluorophenyl)methyl]piperidine

HRID 2260500노트

반응식

HRID 2260500 반응식
[F:1][C:2]1[CH:14]=[CH:13][C:12]([F:15])=[CH:11][C:3]=1[CH2:4][C:5]1[CH:10]=[CH:9][N:8]=[CH:7][CH:6]=1>C(O)(=O)C.[Pt]=O>[F:1][C:2]1[CH:14]=[CH:13][C:12]([F:15])=[CH:11][C:3]=1[CH2:4][CH:5]1[CH2:6][CH2:7][NH:8][CH2:9][CH2:10]1

참가 물질

4

반응물 1

HCID 200942684-(2,5-Difiuorobenzyl)pyridine

생성물 1

HCID 233550784-[(2,5-Difluorophenyl)methyl]piperidine수율 72.9%

시약·촉매·용매 2

HCID 82844Platinum oxide (PtO)촉매HCID 176Acetic Acid용매

실험 절차

A mixture of platinum oxide (0.5 g) and 4-(2,5-difiuorobenzyl)pyridine from above in acetic acid (100 ml) was hydrogenated for 3 hr. The catalyst was removed and the solution concentrated in vacuo. The residue was dissolved in water and the solution basified with sodium hydroxide. The basic mixture was extracted with ether and the extracts concentrated in vacuo. The crude oil was vacuum distilled to give the product (5.1 g, 72.9%, bp: 110° C.). A sample of the hydrochloride was prepared in ether (mp: 182°-183° C.).

후처리

  1. customThe catalyst was removed
  2. concentrationthe solution concentrated in vacuo
  3. dissolutionThe residue was dissolved in water
  4. extractionThe basic mixture was extracted with ether
  5. concentrationthe extracts concentrated in vacuo
  6. distillationdistilled

출처 및 근거

ORD 기록
ord-e50e7a1a52e84bcb83110f0642f86c1e
출처 데이터셋
uspto-grants-1995_12
특허 번호
US05478828

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