Sodium Bicarbonate → N-methyl-N-((4-methyl-5-phenyl-4H-1,2,4-triazol-3-yl)methyl)-5,6,7,8-tetrahydroquinolin-8-amine

HRID 628694ノート

反応式

HRID 628694 の反応式
[CH3:1][NH:2][CH:3]1[C:12]2[N:11]=[CH:10][CH:9]=[CH:8][C:7]=2[CH2:6][CH2:5][CH2:4]1.[CH3:13][N:14]1[C:18]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)=[N:17][N:16]=[C:15]1[CH:25]=O.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C([O-])(O)=O.[Na+]>ClCCCl.CC(O)=O>[CH3:1][N:2]([CH2:25][C:15]1[N:14]([CH3:13])[C:18]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)=[N:17][N:16]=1)[CH:3]1[C:12]2[N:11]=[CH:10][CH:9]=[CH:8][C:7]=2[CH2:6][CH2:5][CH2:4]1

参加物

7

反応物 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 115428934-methyl-5-phenyl-4H-1,2,4-triazole-3-carbaldehydeHCID 58985336N-methyl-5,6,7,8-tetrahydroquinolin-8-amine

生成物 1

HCID 44242330N-methyl-N-((4-methyl-5-phenyl-4H-1,2,4-triazol-3-yl)methyl)-5,6,7,8-tetrahydroquinolin-8-amine

試薬・触媒・溶媒 2

HCID 176Acetic Acid触媒HCID 111,2-Dichloroethane溶媒

反応条件

温度
65 °C

実験手順

To a solution of N-methyl-5,6,7,8-tetrahydroquinolin-8-amine, 5, (0.39 g, 2.40 mmol) in 1,2-dichloroethane (4 mL) was added 4-methyl-5-phenyl-4H-1,2,4-triazole-3-carbaldehyde, 36, (0.41 g, 2.20 mmol), sodium triacetoxyborohydride (0.84 g, 3.90 mmol), and AcOH (1 drop). The reaction mixture was heated to 65° C. and stirred for 18 h. The reaction mixture was cooled to room temperature, poured into saturated aqueous NaHCO3 (10 mL) and extracted with ethyl acetate (2×10 mL). The combined organic phases were washed with brine then dried over MgSO4, filtered, and concentrated in vacuo. The crude material was purified via chromatography on basic alumina (0-5% methanol/dichloromethane) yielding BP: 1H NMR (400 MHz, CDCl3) δ 8.39, (d, J=4.8 Hz, 1H), 7.58-7.53 (m, 2H), 7.46-7.39, (m, 3H), 7.32, (d, J=8.4 Hz, 1H), 7.01, (dd, J=7.2, 4.4 Hz, 1H), 4.04-3.92, (m, 2H), 3.78, (d, J=14.0 Hz, 1H), 2.85-2.74, (m, 1H), 2.71-2.62 (m, 1H), 3.33, (s, 3H), 2.12-1.94 (m, 3H), 1.74-1.62 (m, 1H); ESI+ MS: m/z (rel intensity) 334 (100, M+H).

後処理

  1. temperatureThe reaction mixture was cooled to room temperature
  2. extractionextracted with ethyl acetate (2×10 mL)
  3. washThe combined organic phases were washed with brine
  4. dry with materialthen dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude material was purified via chromatography on basic alumina (0-5% methanol/dichloromethane)
  8. customyielding BP

出典と根拠

ORDレコード
ord-bdb17e4abab741b5815050b095b0650c
出典データセット
uspto-grants-2016_04
特許番号
US09314468B2

反応ノート

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