Picolinic acid → N-(3-methoxyphenyl)picolinamide

HRID 38239ノート

反応式

HRID 38239 の反応式
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:7]=[CH:8][CH:9]=1)[NH2:6].[N:10]1[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=1[C:16](O)=[O:17].CCN=C=NCCCN(C)C.Cl.CCN(CC)CC.OC1C2N=NNC=2C=CC=1>C(Cl)Cl>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([NH:6][C:16](=[O:17])[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][N:10]=2)[CH:7]=[CH:8][CH:9]=1

参加物

7

反応物 5

HCID 1018Picolinic acidHCID 8471TriethylamineHCID 108243-MethoxyanilineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 178418300HCID 178418300、化合物

生成物 1

HCID 22565221N-(3-methoxyphenyl)picolinamide収率 90.1%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

反応条件

温度
50 °C

実験手順

According to Scheme 1 Method B: 3-Methoxyaniline (1.62 mmol, 0.18 mL) was added to a solution of picolinic acid (1.62 mmol, 0.20 g), EDCI.HCl (2.44 mmol, 0.47 g), Et3N (3.25 mmol, 0.45 mL), hydroxybenzotriazole (1.95 mmol, 0.30 g) in DCM (6 mL) at room temperature. The reaction mixture was stirred at 50° C. for 12 hours. The organic phase was washed with a saturated solution of NaHCO3 and with brine, was dried over MgSO4, was filtered and was concentrated under reduced pressure. The crude product was purified by flash chromatography over silica gel using cyclohexane/AcOEt (90:10) as eluent to afford N-(3-methoxyphenyl)picolinamide (1.46 mmol, 0.33 g, 90%) as an orange liquid.

後処理

  1. washThe organic phase was washed with a saturated solution of NaHCO3 and with brine
  2. dry with materialwas dried over MgSO4
  3. filtrationwas filtered
  4. concentrationwas concentrated under reduced pressure
  5. customThe crude product was purified by flash chromatography over silica gel

出典と根拠

ORDレコード
ord-2e32cc9db14340eebcd922f15264f743
出典データセット
uspto-grants-2013_09
特許番号
US08524726B2

反応ノート

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