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Triethylamine → 4-bromo-N-(2,4-dimethoxybenzyl) N-(3-(4-nitrophenyl)prop-2-ynyl)-1H-pyrrole-2-carboxamide

HRID 2096279
ノート
印刷プレビュー

反応式

HRID 2096279 の反応式
[CH3:1][O:2][C:3]1[CH:22]=[C:21]([O:23][CH3:24])[CH:20]=[CH:19][C:4]=1[CH2:5][NH:6][CH2:7][C:8]#[C:9][C:10]1[CH:15]=[CH:14][C:13]([N+:16]([O-:18])=[O:17])=[CH:12][CH:11]=1.[Br:25][C:26]1[CH:27]=[C:28]([C:31](O)=[O:32])[NH:29][CH:30]=1.Cl.C(N=C=NCCCN(C)C)C.O.ON1C2C=CC=CC=2N=N1.C(N(CC)CC)C>CN(C)C=O>[Br:25][C:26]1[CH:27]=[C:28]([C:31]([N:6]([CH2:5][C:4]2[CH:19]=[CH:20][C:21]([O:23][CH3:24])=[CH:22][C:3]=2[O:2][CH3:1])[CH2:7][C:8]#[C:9][C:10]2[CH:15]=[CH:14][C:13]([N+:16]([O-:18])=[O:17])=[CH:12][CH:11]=2)=[O:32])[NH:29][CH:30]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 5

HCID 8471TriethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27413814-bromo-1H-pyrrole-2-carboxylic acidHCID 27960291-Hydroxybenzotriazole hydrateHCID 67443629N-(2,4-dimethoxybenzyl)-3-(4-nitrophenyl)prop-2-yn-1-amine

生成物 1

HCID 67441092
4-bromo-N-(2,4-dimethoxybenzyl) N-(3-(4-nitrophenyl)prop-2-ynyl)-1H-pyrrole-2-carboxamide

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To a solution of EXAMPLE 23B (1 g, 3.07 mmol) in anhydrous N,N-dimethylformamide (25 mL) was added 4-bromo-1H-pyrrole-2-carboxylic acid (0.67 g, 3.53 mmol), 1-ethyl-3-[3-(dimethylamino)propyl]-carbodiimide hydrochloride (0.77 g, 4 mmol), 1-hydroxybenzotriazole hydrate (0.61 g, 4 mmol) and triethylamine (0.4 g, 4 mmol). The reaction was stirred at room temperature overnight, and partitioned between ethyl acetate and brine. The organic phase was washed with brine, dried over anhydrous Na2SO4, filtered, and concentrated. The crude material was purified flash chromatography (20% ethyl acetate in hexane) to afford the title compound. LC-MS (ESI): m/z 500, 498 (M+H), RT: 2.37 min; 1H NMR (400 MHz, dimethylsulfoxide-d6): δ 3.75 (s, 3H), 3.78 (s, 3H), 4.51 (s, 2H), 4.77 (s, 2H), 6.53 (dd, J=6.4, 2.0 Hz, 1H), 6.60 (d, J=2.0 Hz, 1H), 7.09 (dd, J=1.2, 1.6 Hz, 1H), 7.15 (d, J=8.0 Hz, 1H), 7.60 (d, J=8.8 Hz, 2H), 8.21 (d, J=9.2 Hz, 2H), 12.02 (br s, 1H).

後処理

  1. custompartitioned between ethyl acetate and brine
  2. washThe organic phase was washed with brine
  3. dry with materialdried over anhydrous Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude material was purified flash chromatography (20% ethyl acetate in hexane)

出典と根拠

ORDレコード
ord-f9400102b1c54a09842c530e4bb8e1a6
出典データセット
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08450320B2

反応ノート

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