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Toluene → 2-(2-Chloropyrimidin-4-yl)propan-2-ol

HRID 1039920
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HRID 1039920 반응식
C1(C)C=CC=CC=1.C[Mg]Cl.[CH3:11][C:12]([OH:15])([CH3:14])[CH3:13].[Cl:16][C:17]1[N:22]=C(C(OC)=O)[CH:20]=[CH:19][N:18]=1>C1COCC1.CCOC(C)=O>[Cl:16][C:17]1[N:22]=[C:11]([C:12]([OH:15])([CH3:14])[CH3:13])[CH:20]=[CH:19][N:18]=1
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참가 물질

7

반응물 4

HCID 1140TolueneHCID 6386tert-ButanolHCID 43811076Methyl 2-chloropyrimidine-4-carboxylateHCID 178418332HCID 178418332, 화합물

생성물 1

HCID 772310672-(2-Chloropyrimidin-4-yl)propan-2-ol수율 71%

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매2회
HCID 8857Ethyl Acetate용매

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온도
0 °C

실험 절차

To a solution of THF (0.25 mL) and toluene (1 mL) at −20° C. under a nitrogen atmosphere was added methyl magnesium chloride (3.0 M in THF, 1 mL, 2.90 mmol) followed by t-BuOH (0.050 mL in 0.750 mL THF, 0.579 mmol) and left to stir for 30 min at 0° C. The solution was cooled back down to −20° C. and methyl 2-chloropyrimidine-4-carboxylate (100 mg, 0.58 mmol) in THF (1 mL) was added. The solution was warmed to room temperature and stirred for an additional 30 min. The solution was diluted with EtOAc, washed with brine, dried with MgSO4, filtered, and concentrated to dryness to afford 2-(2-chloropyrimidin-4-yl)propan-2-ol (71 mg, 0.41 mmol, 71% yield. MS ESI: [M+H]+ m/z 173.1. 1H NMR (500 MHz, CDCl3) δ 8.60 (dd, J=1.8, 5.1, 1H), 7.44 (d, J=5.1 1H), 1.56 (d, J=1.8, 6H).

후처리

  1. waitleft
  2. additionwas added
  3. temperatureThe solution was warmed to room temperature
  4. stirringstirred for an additional 30 min
  5. washwashed with brine
  6. dry with materialdried with MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated to dryness

출처 및 근거

ORD 기록
ord-6536c52094b7478fbe50342373fa2bfe
출처 데이터셋
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08551984B2

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