(+-)-3-Quinuclidinol → Quinuclidin-3-yl2-bromophenylcarbamate

HRID 2274918노트

반응식

HRID 2274918 반응식
[N:1]12[CH2:8][CH2:7][CH:4]([CH2:5][CH2:6]1)[CH:3]([OH:9])[CH2:2]2.[H-].[Na+].[Br:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[N:19]=[C:20]=[O:21]>C1COCC1>[Br:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[NH:19][C:20](=[O:21])[O:9][CH:3]1[CH:4]2[CH2:7][CH2:8][N:1]([CH2:6][CH2:5]2)[CH2:2]1

참가 물질

5

반응물 3

HCID 15381(+-)-3-QuinuclidinolHCID 24758Sodium hydrideHCID 1370972-Bromophenyl isocyanate

생성물 1

HCID 68327765Quinuclidin-3-yl2-bromophenylcarbamate수율 82%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of quinuclidin-3-ol (382 mg, 3.00 mmol) in THF (15 mL) was added NaH [60% dispersion in mineral oil] (156 mg, 3.90 mmol) at room temperature. The mixture was stirred for 15 min and 2-bromophenyl isocyanate (594 mg, 3.00 mmol) was added under stirring. The resulting mixture was stirred at room temperature for 18 h, quenched with brine and extracted with EtOAc. The organic layers were combined, dried over Na2SO4 and concentrated. The resulting crude product was purified by silica gel column chromatography (EtOAc/methanol 3:1) to give the product quinuclidin-3-yl 2-bromophenylcarbamate as viscous oil (0.80 g, 82%).

후처리

  1. stirringunder stirring
  2. stirringThe resulting mixture was stirred at room temperature for 18 h
  3. customquenched with brine
  4. extractionextracted with EtOAc
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated
  7. customThe resulting crude product was purified by silica gel column chromatography (EtOAc/methanol 3:1)

출처 및 근거

ORD 기록
ord-0c32982d12da42279f7b5219d0c012fb
출처 데이터셋
uspto-grants-2015_09
특허 번호
US09126993B2

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