Benzyl Bromide → HCID 18686046, 화합물

HRID 1357972노트

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HRID 1357972 반응식
[OH:1][CH2:2][C@@H:3]1[C@H:7]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([F:14])[CH:9]=2)[CH2:6][C:5](=[CH2:15])[CH2:4]1.[CH2:16](Br)[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1.[H-].[Na+]>CN(C=O)C.CCOCC>[CH2:16]([O:1][CH2:2][C@@H:3]1[C@H:7]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([F:14])[CH:9]=2)[CH2:6][C:5](=[CH2:15])[CH2:4]1)[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1

참가 물질

6

반응물 3

HCID 7498Benzyl BromideHCID 24758Sodium hydrideHCID 18686049HCID 18686049, 화합물

생성물 1

HCID 18686046HCID 18686046, 화합물수율 47.4%

시약·촉매·용매 2

HCID 3283Diethyl Ether용매HCID 6228Dimethylformamide용매

실험 절차

To a solution of 3-(S)-(hydroxymethyl)-4-(R)-(3-fluorophenyl)-1-methylenecyclopentane (3.11 g, 16.5 mmol) from Example 65, Step C in DMF (100 mL) was added benzyl bromide (4.24 g, 24.8 mmol) and then sodium hydride (60% in mineral oil, 0.73 g, 18.2 mmol) portionwise over 5 min. The reaction was stirred at rt for 16 h, then diluted with ether (100 mL) and quenched slowly into aq. sodium bicarbonate (200 mL). The layers were separated and the aqueous was extracted with ether. The organic layers were washed 3× with water, then brine, dried over sodium sulfate and concentrated. The residue (7 g) was purified by FC using 0.5-1% ethyl acetate in hexanes to afford the title compound (2.32 g).

후처리

  1. customquenched slowly into aq. sodium bicarbonate (200 mL)
  2. customThe layers were separated
  3. extractionthe aqueous was extracted with ether
  4. washThe organic layers were washed 3× with water
  5. dry with materialbrine, dried over sodium sulfate
  6. concentrationconcentrated
  7. customThe residue (7 g) was purified by FC

출처 및 근거

ORD 기록
ord-62ce84a450c54be3a3ba5a98058cbd83
출처 데이터셋
uspto-grants-2003_07
특허 번호
US06593346B2

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