Benzyl Bromide → (2-(Benzyloxy)-5-bromophenyl)methanol

HRID 536570

반응식

HRID 536570 반응식
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([OH:10])=[C:6]([CH:9]=1)[CH2:7][OH:8].[OH-].[Na+].[CH2:13](Br)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>CCO>[CH2:13]([O:10][C:5]1[CH:4]=[CH:3][C:2]([Br:1])=[CH:9][C:6]=1[CH2:7][OH:8])[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

참가 물질

5

반응물 3

HCID 7498Benzyl BromideHCID 14798Sodium HydroxideHCID 753425-Bromo-2-hydroxybenzyl alcohol

생성물 1

HCID 897136(2-(Benzyloxy)-5-bromophenyl)methanol수율 82.1%

시약·촉매·용매 1

HCID 702Ethanol용매2회

실험 절차

A solution of 5-bromo-2-hydroxybenzylalcohol (3.677 g, 18.11 mmol) in abs. EtOH (80 ml) and NaOH (0.797 g, 19.921 mmol) was stirred under a N2 atmosphere for 20 min at RT then a solution of benzylbromide (2.15 ml, 18.11 mmol) in abs. EtOH (10 ml) was added and the mixture was stirred at RT overnight. The volatiles was removed under vacuum. The reminder was partitioned between HCl (2M aq.) and EtOAc. The organic layer was washed with brine, dried (MgSO4) and evaporated to dryness. The residue was purified by MPLC (50 g SiO2 cartridge, eluent 90% iso-hexane-10% EtOAc) yielding 4.36 g of (2-benzyloxy-5-bromo-phenyl)-methanol.

후처리

  1. customThe volatiles was removed under vacuum
  2. customThe reminder was partitioned between HCl (2M aq.) and EtOAc
  3. washThe organic layer was washed with brine
  4. dry with materialdried (MgSO4)
  5. customevaporated to dryness
  6. customThe residue was purified by MPLC (50 g SiO2 cartridge, eluent 90% iso-hexane-10% EtOAc)

출처 및 근거

ORD 기록
ord-fdeb12b724ac4df7874bda2fa5aabaad
출처 데이터셋
uspto-grants-2014_10
특허 번호
US08859606B2

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