Ammonium Hydroxide → 2-Tert-butylpyridin-4(1H)-one

HRID 1516211노트

반응식

HRID 1516211 반응식
[C:1]([C:5]1O[CH:7]=[CH:8][C:9](=[O:11])[CH:10]=1)([CH3:4])([CH3:3])[CH3:2].[OH-].[NH4+:13]>>[C:1]([C:5]1[NH:13][CH:7]=[CH:8][C:9](=[O:11])[CH:10]=1)([CH3:4])([CH3:3])[CH3:2]

참가 물질

3

반응물 2

HCID 14923Ammonium HydroxideHCID 592936742-tert-butyl-4H-pyran-4-one

생성물 1

HCID 582800252-Tert-butylpyridin-4(1H)-one

실험 절차

A mixture of 2-tert-butyl-pyran-4-one (Step 1.6) (5.74 g, 37.7 mmol) and a 30% aqueous solution of ammonium hydroxide (100 mL) is stirred for 1 h at reflux, allowed to cool and concentrated. The residue is triturated with MeOH (200 mL) and filtered. The filtrate is concentrated and the residue purified by silica gel column chromatography (DCM/MeOH/NH3aq, 94:5:1→92:7:1) to afford 4.46 g of the title compound as a yellow solid: ESI-MS: 152.0 [M+H]+; tR=1.45 min (System 1); TLC: Rf=0.11 (DCM/MeOH, 9:1).

후처리

  1. temperatureat reflux
  2. temperatureto cool
  3. concentrationconcentrated
  4. customThe residue is triturated with MeOH (200 mL)
  5. filtrationfiltered
  6. concentrationThe filtrate is concentrated
  7. customthe residue purified by silica gel column chromatography (DCM/MeOH/NH3aq, 94:5:1→92:7:1)

출처 및 근거

ORD 기록
ord-2cf0ca3585804b85be92ea2dbb6c3d8c
출처 데이터셋
uspto-grants-2012_07
특허 번호
US08227462B2

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