1-Propanol → 4-(2-Chloro-4-pyrimidinyl)-N-(cyanomethyl)benzamide

HRID 449806노트

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HRID 449806 반응식
[Cl:1][C:2]1[N:7]=[C:6](Cl)[CH:5]=[CH:4][N:3]=1.[C:9]([CH2:11][NH:12][C:13]([C:15]1[CH:20]=[CH:19][C:18](B(O)O)=[CH:17][CH:16]=1)=[O:14])#[N:10].C(O)CC.C(=O)(O)[O-].[Na+]>C1(C)C=CC=CC=1>[Cl:1][C:2]1[N:7]=[C:6]([C:18]2[CH:19]=[CH:20][C:15]([C:13]([NH:12][CH2:11][C:9]#[N:10])=[O:14])=[CH:16][CH:17]=2)[CH:5]=[CH:4][N:3]=1

참가 물질

6

반응물 4

HCID 10311-PropanolHCID 775312,4-DichloropyrimidineHCID 516892Sodium BicarbonateHCID 866438164-(Cyanomethyl-carbamoyl)phenyl-boronic acid

생성물 1

HCID 866438174-(2-Chloro-4-pyrimidinyl)-N-(cyanomethyl)benzamide

시약·촉매·용매 1

HCID 1140Toluene용매

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온도
90 °C

실험 절차

To a solution of 2,4-dichloropyrimidine (3.2 g, 0.22 mmol) and 4-(cyanomethylcarbamoyl)phenylboronic acid (3.0 g, 15 mmol) in toluene (146 mL) were added n-propanol (44 mL), aqueous sodium bicarbonate (2M, 22 mL) and tetrakis(triphenylphosphine)palladium[0] (850 mg, 0.7 mmol). The reaction was heated at 90° C. for 24 h, then partitioned between ethyl acetate and water. The aqueous layer was extracted twice further with ethyl acetate and the combined organic fractions washed with brine, dried (Na2SO4) filtered and concentrated. Silica gel chromatography using 30-70% ethyl acetate/petroleum spirit as eluent provided 4-(2-chloropyrimidin-4-yl)-N-(cyanomethyl)benzamide as a pale yellow waxy solid (1.35 g, 33%). 1H NMR (300 MHz, d6-DMSO) δ 9.40 (t, J=5.4 Hz, 1H), 8.88 (d, J=5.2 Hz, 1H), 8.32 (d, J=8.7 Hz, 2H), 8.23 (d, J=5.1 Hz, 1H), 8.05 (d, J=8.7 Hz, 2H), 4.36 (d, J=5.4 Hz, 2H); LC-ESI-MS (method B): rt 5.3 min.; m/z 273.2/275.2 [M+H]+.

후처리

  1. custompartitioned between ethyl acetate and water
  2. extractionThe aqueous layer was extracted twice further with ethyl acetate
  3. washthe combined organic fractions washed with brine
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated

출처 및 근거

ORD 기록
ord-f0ba9e4ad70b4176ad70ad0c78106e7b
출처 데이터셋
uspto-grants-2013_07
특허 번호
US08486941B2

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