Diisopropylethylamine → 5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazole-3-carboxylic acid (2,2-diethoxyethyl)-amide

HRID 915831ノート

反応式

HRID 915831 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:12]([C:13]3[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][C:14]=3[Cl:20])[N:11]=[C:10]([C:21]([OH:23])=O)[CH:9]=2)=[CH:4][CH:3]=1.C([NH:31][CH2:32][CH:33]([O:37][CH2:38][CH3:39])[O:34][CH2:35][CH3:36])C1C=CC=CC=1.Cl.CN(C)CCCN=C=NCC.C(N(C(C)C)CC)(C)C>C(Cl)Cl>[CH2:35]([O:34][CH:33]([O:37][CH2:38][CH3:39])[CH2:32][NH:31][C:21]([C:10]1[CH:9]=[C:8]([C:5]2[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][CH:4]=2)[N:12]([C:13]2[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][C:14]=2[Cl:20])[N:11]=1)=[O:23])[CH3:36]

参加物

6

反応物 4

HCID 81531DiisopropylethylamineHCID 521961(Benzylamino)acetaldehyde diethyl acetalHCID 14772405-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazole-3-carboxylic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride

生成物 1

HCID 865948165-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazole-3-carboxylic acid (2,2-diethoxyethyl)-amide収率 46%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a stirred solution of 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazole-3-carboxylic acid (prepared according to the methods described by Barth, et al. in U.S. Pat. No. 5,624,941); 740 mg, 2.01 mmol) and N-benzyl-N-(2,2-diethoxyethyl)amine (450 mg, 2.01 mmol) in methylene chloride (6.5 ml) at room temperature was added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (464 mg, 2.42 mmol) and then diisopropylethylamine (0.42 ml, 2.2 mmol), dropwise. After stirring for 23 hours, the reaction mixture was concentrated, in vacuo, and then extracted from saturated aqueous sodium bicarbonate with ethyl acetate. The combined organic layers were washed with brine, dried (MgSO4), and concentrated, in vacuo. The crude material (1.05 g) was purified on a Biotage™ Flash 40S column using 0-20% ethyl acetate in hexanes as eluant to afford I-1A-1a as a foam (534 mg, 46%): +ESI MS (M+1) 572.1; 1H NMR (500 MHz, CD2Cl2) 1:1 mixture of rotamers, δ 7.51 (br s, 0.5H), 7.47 (d, J=2.1 Hz, 0.5H), 7.38-7.34 (m, 2H), 7.38-7.23 (m, 9H), 7.18-7.11 (m, 2H), 7.03 (s, 0.5H), 6.95 (s, 0.5H), 5.22 (s, 1H), 4.91 (s, 1H), 4.83-4.79 (m, 1H), 3.56-3.07 (m, 6H), 1.20 (t, J=7.0 Hz, 3H), 1.07 (t, J=7.0 Hz, 3H).

後処理

  1. concentrationthe reaction mixture was concentrated, in vacuo
  2. extractionextracted from saturated aqueous sodium bicarbonate with ethyl acetate
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated, in vacuo
  6. customThe crude material (1.05 g) was purified on a Biotage™ Flash 40S column

出典と根拠

ORDレコード
ord-cd05a0cc68244f21967361031dfa50b7
出典データセット
uspto-grants-2007_09
特許番号
US07268133B2

反応ノート

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